Garden plants on Earth require four resources to stay alive: soil, air, water, and sunlight. How many of these resources are necessary for life to exist on another planet or the Moon
Answers
Answer:
They are all needed
Explanation:
For life to exist .there must be food which can't be there without soil ...air water and sunlight
Related Questions
Increasing muscle tension inhibits the alpha motor neuron to slow muscle contraction. a. True b. False
Answers
Increasing muscle tension inhibits the alpha motor neuron to slow muscle contraction. This statement is true. When muscle tension increases, it can cause inhibition of the alpha motor neuron and a decrease in the speed of muscle contraction. What are motor neurons? A motor neuron is a nerve cell that receives electrical impulses from the brain and spinal cord, which is transmitted to the muscle fibers to control voluntary and involuntary muscle movements. These neurons are divided into two types, i.e., alpha motor neurons and gamma motor neurons.
Alpha motor neurons control the extrafusal muscle fibers of the skeletal muscle, which control the contraction and relaxation of the muscle fibers. Whereas gamma motor neurons control the intrafusal muscle fibers of the muscle spindle, which help in the regulation of muscle tone. The nervous system can regulate the tension in the muscle fibers by regulating the firing of alpha motor neurons. When muscle tension increases, it can cause inhibition of the alpha motor neuron and a decrease in the speed of muscle contraction. This effect is known as the Golgi tendon organ reflex. The Golgi tendon organ reflex is a type of stretch reflex that helps to protect muscles from damage due to excessive contraction.
It is mediated by the Golgi tendon organ, which is a sensory receptor located at the junction of the muscle and tendon. The Golgi tendon organ responds to changes in muscle tension and sends signals to the spinal cord to inhibit the alpha motor neuron and decrease the speed of muscle contraction. This reflex can be activated by both passive and active stretching, and it is an important mechanism for maintaining muscle tone and preventing injury. So, the given statement is true that increasing muscle tension inhibits the alpha motor neuron to slow muscle contraction.
To know more about involuntary muscle visit
https://brainly.com/question/1015369
#SPJ11
name and match the description of the phases of meiosis 1
Answers
2. Homologous chromosomes pair up forming a tetrad
3. Spindle fibers attach to chromosomes
4. Spindle fibers pull chromosomes toward opposite ends of the cell
5. Two new nuclear membranes form. Two new cells are formed
In an Antarctic pelagic community, the primary producers are phytoplankton, which serve as food for the dominant grazing zooplankton, especially krill and copepods, both of which are crustaceans.
These zooplankton species are in turn eaten by various carnivores, including other plankton, penguins, seals, fish, and baleen whales. Squids, which are carnivores that feed on fish and zooplankton, are another important link in these food webs, as they are in turn eaten by seals and toothed whales (Figure 1).
Figure 1: Arrows follow the transfer of food from the producers (phytoplankton) up through the trophic levels. For simplicity, this diagram omits decomposers.
Antarctic krill (Euphausia superba) is an important source of food for whales, seals, squid, fish, and many species of birds. Its abundant biomass is one of the largest on Earth. Figure 2 compares the effects of krill harvesting on species richness within two small sections of the Antarctic region; one section was subject to krill harvesting and the other section was not.
Describe how the autotrophs facilitates the flow of energy through the Antarctic ecosystem. In the Antarctic pelagic community, there are three types of seals. The leopard seals eat birds, but the crabeater and elephant seals do not. Explain how the interactions between seals and other species may affect their food sources.
Identify the independent variable of the data graphed in Figure 2. Explain one way this variable is affecting the biodiversity of the Antarctic food web.
Analyze the change in species richness with or without krill harvesting. Predict how the removal of krill from the Antarctic ecosystem will affect its long-term structure.
Justify the claim that the Antarctic krill is a foundation species, not a keystone species. Provide evidence to support your claim.
Answers
Answer:
a) the autotrophs produce their own energy in their system and synthesize surrounding energy, which allows for the flow of energy as they are the primary producers at the bottom of the food web shown in figure 1 who transfer and facilitate their energy when they are consumed by the organisms in higher levels. This facilitation of energy continues where the population of these autotrophs is stable and the cycle of consumption and synthesis of energy from one trophic level to another and there is a diverse amount of energy distributed in the ecosystem. The leopard and Elephant seals have a similar food preference which may cause competition for resources in the ecosystem between the two more than that of the crabeater seal as they rely solely on krill in the ecosystem to survive. If there was more competition for the krill or a decrease in population, their population is sure to suffer as well.
b) The year is independent of the number of species in the data graphed. This variable affects the biodiversity in the food web where we witness the number of species (hundreds) likely to witness an increase over time when krill are harvested and a decrease in the number of species without krill harvesting. This, in turn, may prove that krill is a keystone species crucial in the food web and ecosystem where the antarctic krill population's presence will influence the number of species as well.
c) The changes in species richness with krill harvesting, as per mentioned, will show an increase in species number as the krill's energy is transferred throughout the ecosystem by consumption, as implied in the food web. The changes in species richness with a lack of krill harvesting, or some organisms unable to consume the energy of the krill, was shown to have a decrease in species # over the years. This will affect the long term structure of the ecosystem as the organisms who rely on krill and even those in the trophic levels which rely on species who consume krill will drop dramatically, and the lowering of the number of organisms in a keystone species will cause a decrease in speciation of the ecosystem (possibly quite rapidly due to the dependence we witness on it) as well as a disruption in the energy flow.
d) we can affirm that the krill are in fact not a foundation species, but a keystone species as they show no specific traits of facilitating the populations of the species in the ecosystem, and don't appear to benefit other species in the ways foundation species do (ie. they are autotrophs and cannot provide shelter for other species, but we can also say that they are the sole energy producers for the crabeater seals, which can be a trait of a foundation species)- instead exhibiting the traits of a keystone species as they produce an abundance of energy in the ecosystem and the removal of them (as shown in figure 2), causes a population decrease all around.
Explanation:
ur welcome i just did this myself so pls paraphrase as much as u can also like a bit of an explanation its kinda obvious from the chart that they all rely on the krill and stuff so removing it (or not harvesting or something) would be bad. again pls paraphrase as much as u can and good luck
I need someone to explain this
Answers
1) If you want a dog that doesn't shed, you will look for a mix of a poodle and another type of dog to produce the desired trait on non-shedding, this is an example of: a) Genetic Engineering b) Selective Breeding c) Cloning d) Asexual Reproduction
Answers
Answer:
B) Selective breeding
Discuss how this global circulation, and its variation from winter to summer, affects our climate in southern California. Your answer should include the following 4 items: 1. Which part of the global circulation affects us in summer? 2. How does this affect the weather? 3. Which part of the global circulation affects us in winter? 4. How does this affect the weather? This should be similar to the discussion above for India, but include as much detail as you feel is appropriate. Hint: we are located at about 34 degrees north latitude on the west coast of North America.
Answers
The global circulation patterns, specifically the North Pacific High in summer and the westerlies in winter, greatly influence the climate of Southern California.
In Southern California, the global circulation patterns have a significant influence on the climate, with variations between the summer and winter seasons. Here's how it affects the weather:
1. Summer Circulation:
During the summer, the region is influenced by the North Pacific High-pressure system, also known as the Pacific High. This semi-permanent subtropical high-pressure system develops over the northeastern Pacific Ocean, off the California coast. The Pacific High brings about stable, warm, and dry conditions to Southern California during the summer months. The clockwise circulation around the high-pressure system leads to the development of offshore winds, commonly known as Santa Ana winds, which can further amplify dry and warm conditions.
2. Summer Weather:
Due to the influence of the Pacific High, Southern California experiences hot and dry summers. The high-pressure system blocks the intrusion of marine air from the nearby ocean, resulting in limited cloud cover and minimal rainfall. The dry conditions, combined with the offshore winds, contribute to increased fire risk and elevated temperatures in inland areas.
3. Winter Circulation:
In winter, Southern California is influenced by the westerlies, which are prevailing winds that blow from west to east. The westerlies are part of the mid-latitude circulation patterns and are responsible for the movement of weather systems across the region. The jet stream, a high-speed river of air in the upper atmosphere, plays a significant role in steering storm systems during the winter months.
4. Winter Weather:
The westerlies and the associated jet stream play a crucial role in bringing precipitation to Southern California during the winter season. Storm systems from the Pacific Ocean travel eastward along the jet stream, reaching the region and bringing rainfall. The intensity and frequency of storms can vary from year to year, impacting the amount of precipitation received. These winter storms are crucial for replenishing water resources and contributing to the overall seasonal rainfall in the area.
Overall, the global circulation patterns, specifically the North Pacific High in summer and the westerlies in winter, greatly influence the climate of Southern California. Understanding these circulation patterns and their seasonal variations helps in predicting and understanding the region's weather patterns, including temperature, precipitation, and wind conditions.
To know more about Southern California follow the link:
https://brainly.com/question/17566419
#SPJ4
the sympathetic division of the ans causes ___________ airway dilation relaxation of the diaphragm decreases in breathing rates contraction of smooth muscles lining the bronchioles
Answers
The sympathetic division of the ANS causes B) airway dilation.
The sympathetic division of the autonomic nervous system (ANS) is responsible for the body's "fight or flight" response, which is triggered in times of stress, danger, or excitement. This response prepares the body for immediate action by activating certain physiological changes.
When the sympathetic division is activated, it causes the dilation or widening of the airways in the lungs. This is achieved through the relaxation of the smooth muscles that line the bronchioles, which are the small air passages in the lungs. By relaxing these smooth muscles, the diameter of the bronchioles increases, allowing for improved airflow and increased oxygen delivery to the body's tissues.
Airway dilation is an important response during the "fight or flight" response because it enhances the individual's ability to take in more oxygen and deliver it to the muscles, enabling them to respond quickly and effectively in a potentially threatening or demanding situation.
The other options listed are not accurate:
A) Contraction of smooth muscles lining the bronchioles would result in the narrowing of the airways, reducing airflow.
C) Relaxation of the diaphragm is not a direct effect of the sympathetic division. The diaphragm is primarily controlled by the somatic nervous system.
D) Decreases in breathing rates are not a direct effect of the sympathetic division. The sympathetic division generally increases physiological responses, including breathing rates, to prepare the body for action.
In summary, the sympathetic division of the ANS causes airway dilation by relaxing the smooth muscles lining the bronchioles, allowing for increased airflow and improved oxygenation of the body's tissues.
To know more about sympathetic division of the ANS follow the link:
https://brainly.com/question/30395432
#SPJ4
The correct question is:
The sympathetic division of the ANS causes
A contraction of smooth muscles lining the bronchioles
B airway dilation
C relaxation of the diaphragm
D decreases in breathing rates
which structure is not found in both animal cells and bacterial cells?
A) cell membrane
B) cytoplasm
C) mitochondrion
D) ribosomes
Answers
explanation: bacterial cells doe not have the powerhouse of the cell.
The major causes of destruction and degradation of tropical forests includes all of the following except a illnesses of trees and other plants b population growth c poverty d crop and timber exports e not valuing ecological services
Answers
The major causes of destruction and degradation of tropical forests are numerous, and they vary from region to region. However, the option that does not contribute to forest destruction and degradation is illnesses of trees and other plants.
Population growth is a significant cause of forest destruction and degradation, as the growing demand for food, water, and other resources leads to increased pressure on the forests. As populations grow, people often move into forested areas, clear the land for agriculture, and overuse the natural resources, leading to soil erosion, deforestation, and biodiversity loss.
Poverty is another significant factor, as people living in poverty often have no choice but to rely on the forests for their livelihoods. They may engage in illegal logging, hunting, and other activities that can damage the forest ecosystem.
Crop and timber exports also contribute to forest destruction and degradation, as companies and individuals seek to profit from the natural resources of the forest. This can lead to unsustainable harvesting practices, overuse of the land, and damage to the ecosystem.
Finally, not valuing ecological services is another significant cause of forest destruction and degradation. When we fail to recognize the critical role that forests play in providing clean air and water, regulating the climate, and supporting biodiversity, we may prioritize short-term economic gain over long-term ecological health.
In conclusion, while illnesses of trees and other plants do not contribute to forest destruction and degradation, there are many other factors that do. Addressing these causes will require a concerted effort from governments, businesses, and individuals around the world to protect and preserve these vital ecosystems.
learn more about plants
https://brainly.com/question/28279066
#SPJ11
how many atp and how many nadh molecules are invested to add one molecule of glucose to a glycogen chain?
Answers
Two NADH molecules are fashioned for each one glucose molecule. 5. Two molecules of ATP are generated for each one molecule of glucose in step 7 (powered via way of means of hydrolysis of the excessive electricity phosphate bond on 1,3- BPG).
Glycolysis produces 2 ATP, 2 NADH, and a pair of pyruvate molecules: Glycolysis, or the cardio catabolic breakdown of glucose, produces electricity withinside the shape of ATP, NADH, and pyruvate, which itself enters the citric acid cycle to supply greater electricity.
It is the system of breaking down glucose to create electricity. Glycolysis generates 2 ATP and a pair of NADH, for a complete of eight ATP molecules.
To learn more about NADH molecules, click here:
https://brainly.com/question/14893932
#SPJ4
What are the problems with a cell becoming too large? (Choose all that apply).
Group of answer choices
DNA is overloaded
The volume increases faster than the surface area causing the cell to possibly burst.
The surface area increases faster than the volume causing the cell to possibly burst.
Nutrients and materials are hard to pass throughout the cell.
There is more room for materials to pass because the cell is bigger.
Less efficient
More efficient
Cell ratio of SA:V does not affect the cell.
Hinders cell-cell communication
Answers
Answer:
DNA is overloaded
The volume increases faster than the surface area causing the cell to possibly burst
Nutrients and materials are hard to pass throughout the cell
Less efficient
Hinders cell-cell communication
Which act prompted the developers to install stormwater management systems to handle the movement of polluted water? The_______prompted the developers to install stormwater management systems to handle the movement of polluted water.
Answers
Answer:
The US Clean Water Act
Explanation:
The US clean water Act was passed in 1972. The main purpose of the Act was to ensure the regulation and reduction of pollutants into the water bodies. This was to ensure that the waterbodies were more cleaner, clearer and fit for use by the populace and thriving of life forms present.
This led the developers to install stormwater management systems to handle the movement of polluted water away from the waterbodies.
what type of bonds hold the nitrogenous bases together in dna
Answers
Answer:
Glycosidic bondExplanation:
The glycosidic bond in DNA is the nitrogen-carbon coupling in between the 9′ nitrogen of purine bases (Adenine/Guanine) or the 1′ nitrogen of pyrimidine bases (Cytosine/Thymine) as well as the 1′ carbon of the deoxyribose sugar group. The synthesis of nucleoside arises from the binding of the nitrogenous base to the deoxyribose sugar via N-glycosidic linkage.
PLEAse do a good job i will mark brainliest
Please watch the following video and answer the questions that follow.
https://www.ted.com/talks/david_gallo_underwater_astonishments/up-next
David Gallo: Underwater astonishments
1. Gallo spends his short talk examining amazing underwater creatures and pointing out their adaptations. He mentions two squid that are fighting. What part of his description of these squid is an adaptation? Why might this be useful for the male squid?
2. What adaptation does Gallo describe when talking about the octopus?
3. Gallo mentions several things that sea creatures use bioluminescence for that were also mentioned by Widder in the previous video. Describe the similarities and differences between the two talks.
4. Given the various ways underwater creatures use bioluminescence, discuss which you think would be most useful and why?
Answers
Answer:
1. When Gallo talks about two fighting male squids, he indicates they turn white when they become aggressive toward each other. Gallo mentioned that when there were two males and a female present, one male adapted by splitting his coloration and showing the other male his white side and displaying the colorful side toward the female. It was useful to the male squid to share his colorful and enticing side with the female while maintaining an aggressive posture with the male.
2. The octopus was able to avoid predators by taking the appearance of a rock or sliding across the ocean floor while being hidden within the shadows. This adaptation allows the octopus to move stealthily and undetected among prey or predators.
3. Gallo pays tribute to Edith Widder in this video, acknowledging her camera system that captures the movement of ocean animals amid their natural habitats. Like Widder, Gallo points out how the bioluminescence lighting helps animals to survive. However, Widder also shares how some species use their lights to trick prey and hypnotize them with pulsating colors.
4. Since bioluminescence species live far below the dark ocean depths, the most useful advantage of the lighting would be to find sources for food amid the barren darkness. Food sources can be sparse in the lower depths, giving a decided advantage to those with lighting.
Explanation:
Hardwired characteristics of the brain that attempt to keep us in balance by correcting deficiencies are referred to as:
Answers
Hardwired characteristics of the brain that attempt to keep us in balance by correcting deficiencies are referred to as homeostatic mechanisms.
Homeostasis is the body's ability to maintain a stable internal environment despite external changes.
In the context of the brain, homeostatic mechanisms involve various processes that regulate physiological functions and maintain optimal levels of essential substances.
These mechanisms can include feedback loops that detect imbalances and initiate corrective actions.
For example, if there is a deficiency in a particular nutrient or hormone, the brain may activate mechanisms to increase its production, decrease its consumption, or enhance its absorption from the environment.
Homeostatic mechanisms play a crucial role in ensuring the body's overall stability and functioning, helping to maintain proper levels of various substances and promoting overall well-being.
To know more about Homeostasis, refer here:
https://brainly.com/question/15647743#
#SPJ11
in what way does heredity influence the environment
Answers
The genetic-environmental correlation theory claims that our genes have an impact on the surroundings we are exposed to. Passive correlation, in which the youngster has little control, is typical in younger children. Parents shape their children's environment, which is linked to genetics.
Explanation:
His/her answer was very detailed and I liked it.
true or false?two-thirds of our rainfall is returned to the air by evaporation and respiration
Answers
About 90% of the water in the atmosphere is produced from evaporation crom water bodys, while the remaining 10% comes from transpiration. These are the form of return of the water to the atmosphere in the water cycle. The rainfall is related to the process of precipitation of the water cycle, being know a the return of water to the Earth.
Therefore, for the information about the water cycle and how it work, the alternative is false because according to the known about the water cycle, rainfall is not direct linked to the return of water to the air, but to the return of water to the Earth.
ANSWER ASAP PLEASE!!!!! 30 POINTS
Describe what occurs during the process of seed development.
Answers
In angiosperms, the process of seed growth begins with double fertilization and concerns the fusion of the egg and sperm nuclei into a zygote. The second part of this process is the fusion of the polar nuclei with a second sperm cell nucleus, thus forming a primary endosperm.
What happens during seed formation?When pollen anchors on the flower's stigma, it grows and develops a pollen tube, which then fast grows towards the plant's ovary. Once it sees an ovule, the pollen tube explosions to release sperm cells, which fertilize the ovule and start seed formation
Thus, double fertilization is part of seed development.
To learn more about double fertilization click here:
https://brainly.com/question/14592788
If you guys get this correct I will give you a brainliest after I find out if it’s correct or not. thanks :)
Answers
Answer:
it's equal to mass of CaO plus the mass of CO2 by law of conservation.
What occurs when there is a higher concentration of molecules on one side of a membrane and the molecules flow to the other side to balance the concentration
Fusion
ОООО
Simulus
Conversion
Answers
Answer:
Diffusion
Explanation:
The concept of diffusion states that molecules like to travel from areas of high concentration to low concentration.
Let's think about an example. Let's say you are having a party at your house and in one room there is 100 people and in the other room connected to it, there is only 10 people. What do you think is going to happen as time passes? Right, people are going to move to the room where there is less people so as to equally disperse themselves across the area. The same thing happens within our body with ions and gases.
Ions can diffuse into or out of cells based off their concentration gradients. If there are too many ions on one side, they will simply move to the other side. There are different types of diffusion. Passive diffusion and facilitated diffusion, but those are for a different conversation.
Which of the following distinguishes scientific law from scientific theory?
A law is supported by a substantial body of evidence.
A law explains a set of related phenomena.
A law is often non-mathematical.
A law is consolidated by repeated testing of a phenomenon.
Explain the difference between the theory of general relativity and the law of gravity.
Answers
Answer:
Explanation:
In general, a scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. The explanation of a phenomenon is called a scientific theory.
The answer is IN FACT:
A law is consolidated by repeated testing of a phenomenon.Why is prior knowledge so important in science?
A)
Prior knowledge helps other scientists to view your work as more valid.
B)
Prior knowledge limits your exploration of a topic, this allows scientists to
stay focused
C)
Prior knowledge allows you to make a well-informed hypotheses and
better-planned experiment.
Prior knowledge gives you preconceived ideas on a topic, this can direct
which way your results should go.
D)
Answers
Why is prior knowledge so important in science?
C)
Prior knowledge allows you to make a well-informed hypotheses and
better-planned experiment.
What is prior knowledge how does it influence learning?Prior knowledge has long been considered the most important factor influencing learning and student achievement. The amount and quality of prior knowledge positively influence both knowledge acquisition and the capacity to apply higher-order cognitive problem-solving skills.
What is prior knowledge mean?Prior knowledge is defined as all the knowledge one has before learning about a particular topic
Learn more about prior knowledge here
https://brainly.com/question/24703657
#SPJ2
in a hardy-weinberg population with two alleles, a and a, that are in equilibrium, the frequency of the allele a is 0.3. what is the percentage of the population that is homozygous for this allele? group of answer choices
Answers
In a Hardy-Weinberg population with two alleles (A and a) that are in equilibrium, the frequency of allele a is 0.3, then the percentage of the population that is homozygous for the allele a (aa) is 9%.
To find the percentage of the population that is homozygous for this allele (aa), you will need to follow these steps:
1. Recall the Hardy-Weinberg equation: p^2 + 2pq + q^2 = 1, where p is the frequency of allele A, q is the frequency of allele a, p^2 represents the frequency of homozygous dominant (AA), 2pq represents the frequency of heterozygous (Aa), and q^2 represents the frequency of homozygous recessive (aa).
2. Since the frequency of allele a is 0.3, q = 0.3.
3. Calculate the frequency of homozygous recessive (aa) by finding the square of q (q^2): (0.3)^2 = 0.09.
4. To find the percentage of the population that is homozygous for allele a (aa), multiply the frequency by 100: 0.09 * 100 = 9%.
Therefore, the percentage of the population that is homozygous for the allele a (aa) is 9%.
To know more about the hardy-weinberg equation: https://brainly.com/question/16823644
#SPJ11
shortly after adding 14c -labeled glyceraldehyde-3-phosphate to a yeast extract, fructose-1,6-bisphosphate labeled at c -3 and c -4 can be isolated.
Answers
Shortly after adding 14C-labeled glyceraldehyde 3 phosphate to a yeast extract, fructose-1,6-bisphosphate labeled at C-3 and C-4 can be isolated.
Glyceraldehyde is a simple sugar and an important molecule in biochemistry. It is a three-carbon sugar with the chemical formula C3H6O3. Glyceraldehyde is a key intermediate in several metabolic pathways, including glycolysis and gluconeogenesis. It plays a critical role in energy metabolism, serving as a substrate for the production of ATP, the main energy currency of cells. Additionally, glyceraldehyde is a component of various carbohydrates and is involved in the synthesis of lipids and amino acids. Its versatility and involvement in metabolic processes make it significant for cellular function.
Learn more about glyceraldehyde here;
https://brainly.com/question/30396014
#SPJ11
In humans, the hormone testosterone enters cells and binds to specific proteins, which in turn bind to specific sites on the cells' dna. What is the probable action of these proteins?.
Answers
Testosterone helps RNA polymerase transcribe certain genes. It is a steroid hormone.
Testosterone and gene expressionTestosterone is a steroid hormone produced in the gonads and secreted by the Leydig cells.
During gene expression, testosterone helps to RNA polymerase, which is a key enzyme that acts during transcription.
During transcription, RNA polymerase sequentially adds nucleotides in order to form a single strand RNA.
Learn more about transcription here:
https://brainly.com/question/1048150
Several organs that you would be able to see in the Thoracic Cavity would include? A. heart, liver, brain B. lungs, heart, esophagus C. stomach, liver, intestines D. brain, eyes, ears
Answers
Answer: B. Lungs, heart, and esophagus
How does Passive Transport and/or Active Transport help a cell maintain homeostasis?
Answers
Answer:
Types of passive transport include simple diffusion, osmosis, and facilitated diffusion. Active transport requires energy from the cell. Cell transport helps cells maintain homeostasis by keeping conditions within normal ranges inside all of an organism's cells.
Explanation:
What are the three outputs a result of photosynthesis?✨ Will give brilliant✨ ( when I can)
1. ____ which is also known as sugar
2. _____ _______
3. ______= O2
Of the 3 outputs, _____ is the actual food for the plant
Answers
2. Calvin cycle ( I might be wrong)
3. Light reaction
Light reaction is the actual food for the plant
based on fick’s law, if the inner lining of the air sacs/alveoli is neither thin nor highly vascularized, then what can be inferred about the air sacs?do veins have thick walls no valves
Answers
Based on Fick's Law, if the inner lining of the air sacs/alveoli is neither thin nor highly vascularized, it can be inferred that the efficiency of gas exchange within the air sacs would be significantly reduced. The veins have thick walls and have have valves that help prevent the backflow of blood.
Fick's Law states that the rate of diffusion of a gas across a membrane is directly proportional to the surface area and the concentration difference, and inversely proportional to the membrane thickness. A thinner and more vascularized inner lining would provide a larger surface area and shorter distance for gases to diffuse, enabling efficient oxygen and carbon dioxide exchange.
Veins, in contrast to the alveoli, generally have thicker walls than capillaries but thinner walls compared to arteries. However, they do have valves that help prevent the backflow of blood, ensuring unidirectional blood flow back towards the heart. This structure and the presence of valves aid in the transportation of blood under lower pressure compared to the arteries. Overall, the structure of alveoli and veins are specialized to fulfill their respective functions in gas exchange and blood circulation.
Learn more about Fick's Law at
https://brainly.com/question/30761349
#SPJ11
ADP can convert to ATP during....
1. oxidation
2. phosphorylation
3. dephosphorylation
Answers
Answer:
Phosphorylation
Explanation:
ADP is converted to ATP for the storing of energy by the addition of a high-energy phosphate group. The conversion takes place in the substance between the cell membrane and the nucleus, known as the cytoplasm, or in special energy-producing structures called mitochondria.