the purpose of cell
Answer:
A cell is the basic unit of life, essential to maintaining the physiology of the larger organism. In animals, certain organelles metabolize food into energy, and then uses the energy for repair, growth and reproduction.
Explanation:
The cell is the basic structural, functional, and biological unit of all known organisms. A cell is the smallest unit of life. Cells are often called the "building blocks of life". The study of cells is called cell biology, cellular biology, or cytology.
Which of these planets has characteristics most similar to Saturn?
Jupiter, Uranus, and Neptune
Mercury, Venus, and Earth
O Venus, Earth, and Mars
Earth, Mars, and Saturn
30 POINTS PLEASE HELP
which option is a sign that an experiment would benefit from a redesign?
The experiment contained control groups.
The hypothesis is supported by the results.
Only the independent variable in the experiment was changed.
The results refute the hypothesis.
Only the independent variable in the experiment was changed.
Explanation:
Step 1: Define your variables. You should begin with a specific research question. ...
Step 2: Write your hypothesis. ...
Step 3: Design your experimental treatments. ...
Step 4: Assign your subjects to treatment groups. ...
Step 5: Measure your dependent variable
Your father is a salt maker. He goes to work at the beach everyday especially during summer, During rainy days he stop working, why could he not make salt during rainy days?
Answer:
Rainy days can make it difficult for salt makers to produce salt because the rainwater can dissolve the salt and make it difficult to collect. The process of making salt involves evaporating seawater to leave behind the salt crystals, but rainwater can interfere with this process and make it difficult to produce high-quality salt. Therefore, salt makers often need to stop working during rainy days in order to ensure that they can produce high-quality salt.
Types of micro-nutrients required in human diet
Answer:
YOUR ANSWER IS HERE .
Water-soluble vitamins, Fat-soluble Vitamins, Trace minerals, and Macrominerals
In order to survive, animals need to adapt to their environment over many generations. Think about your favorite animal, its physical features, and its environmental challenges. Without doing any outside research, in 3-5 sentences, try to: a) describe what features have likely had to adapt to its environment over time, and b) hypothesize what ways it might have to adapt to environmental changes in the future.
Cheetahs are one of my favorite creatures.
CheetahsCheetahs' physical characteristics, such as their speed, agility, and razor-sharp claws, have probably evolved over time to help them survive in their habitat.
Cheetahs are swift hunters that can pursue prey in wide-open savannahs. Their keen claws enable them to grip the ground while racing quickly.
Cheetahs may need to adjust to new environmental conditions in the future, including greater competition for food and water and habitat loss brought on by human activities.
They could need to change their hunting techniques, pick other prey, or even broaden their range to encompass new ecosystems.
Additionally, they might need to strengthen their defenses against illnesses and other environmental stresses in order to survive in a changing world.
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Drag each tile to the correct box
Place the items in order from highest to lowest degree of internal organization
tissue
organ system
HID
&
Answer:
cell
tissue
organ
organ system
I hope this helps
Order from highest to lowest degree of internal organization are organ system, organ, tissues, cell.
What are the characteristic feature of tissue?A group of cells with similar structure and performing specific function called as tissue.
In animal it can be up four types such as connective, muscle, nervous, and epithelial tissue.
Connective tissue is made up of cells and gel like substances. Except lymph and blood all tissue contains collagenous fibers.
Fibers Of connective tissue help in binding of bones, movement of lungs, physical support to cell.
Muscle tissue are up different types like skeletal, cardiac and smooth muscle.
Skeletal muscle help in binding of tendons to bones followed by movement.
Cardiac muscle in heart and help in contraction to pump blood.
Smooth muscle in the intestine helps in movement of food through the digestive tract.
Nervous tissue is present in the brain, spinal cord, and peripheral nerves, made up of neurons.
Epithelial tissue are present on the surfaces the skin, the trachea, the reproductive tract, provide protection to organs.
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What are 3 activities that release carbon dioxide into the atmosphere?
Answer:
Burning fossil fuels, releasing chemicals into the atmosphere, reducing the amount of forest cover, and the rapid expansion of farming, development, and industrial activities are releasing carbon dioxide into the atmosphere and changing the balance of the climate system.
What are the top 3 human activities that produce CO2?
Eighty-five percent of all human-produced carbon dioxide emissions come from the burning of fossil fuels like coal, natural gas and oil, including gasoline. The remainder results from the clearing of forests and other land use, as well as some industrial processes such as cement manufacturing.
What causes carbon dioxide to increase in the atmosphere?
Human Activity Is the Cause of Increased Greenhouse Gas Concentrations. Over the last century, burning of fossil fuels like coal and oil has increased the concentration of atmospheric carbon dioxide (CO2). This increase happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2.
Hope this helps :)
Pls brainliest...
Circle the letter of each molecule that makes up the sides of the DNA
ladder.
a. deoxyribose
b. glucose
c. phosphate
d.oxygen
Answer:
a. deoxyribose
Explanation:
What effective control measures would you recommend to these farmers against nematode parasites?
Answer:
Nematode parasites can cause significant damage to crops and reduce yield, so it is important for farmers to take effective control measures. Here are some recommendations that farmers can consider:
1. Crop rotation: Farmers can rotate their crops with non-host plants to break the nematode life cycle. This helps to reduce the population of nematodes and prevent them from building up in the soil.
2. Soil solarization: This involves covering the soil with a clear plastic sheet during the hot summer months to increase the temperature of the soil and kill nematodes.
3. Biocontrol agents: Certain predatory microorganisms and beneficial nematodes can be effective in controlling plant parasitic nematodes. These biocontrol agents can be applied to the soil to help suppress nematode populations.
4. Nematicides: Chemical nematicides can be used to kill nematodes, but they should be used judiciously as they can have negative environmental impacts and may harm other organisms in the soil.
5. Sanitation: Farmers should practice good sanitation practices such as removing infected plant debris and cleaning tools and equipment to prevent the spread of nematodes.
6. Resistant varieties: Planting resistant crop varieties can help reduce the damage caused by nematodes.
7. Soil improvement: Maintaining soil health through practices such as adding organic matter can improve soil structure, fertility, and water-holding capacity, making it less hospitable to nematodes.
By implementing these control measures, farmers can effectively manage nematode infestations and protect their crops from damage.
Answer:
Explanation:
ome effective control measures against nematode parasites, such as crop rotation, use of resistant crop varieties, biological control methods, soil solarization, and chemical control using nematicides. Here are some links for further reading:
Brainliest pls
A hungry yeast cell lands in a vat of grape juice and begins to feast on the sugars there, producing carbon dioxide and ethanol in the process:
C6H12O6 + 2ADP + 2Pi + H+ → 2CO2 + 2CH3CH2OH + 2ATP + 2H2O
Unfortunately, the grape juice is contaminated with proteases that attack some of the transport proteins in the yeast cell membrane, and the yeast cell dies. Which of the following is the most likely cause of the yeast cell’s demise?
a. toxic buildup of carbon dioxide inside the cell
b. toxic buildup of ethanol inside the cell
c. diffusion of ATP out of the cell
d. inability to import sugar into the cell
e. inability to take water into the cell
Answer:
The correct answer will be
D.) inability to import sugar into the cell.
Explanation:
The grape juice is contaminated with proteases that attack some of the transport proteins in the yeast cell membrane, and the yeast cell dies. inability to import sugar into the cell
what are the function of protease ?Proteases are the enzymes found in all living organism like bacteria, algae, plants and animals and in some of the viruses.
They are mainly involved in the catabolism and digestion of proteins and cell signalling, involve in hydrolysis of peptide bonds and convert them to amino acids, which is then absorbed and utilised by cells.
They involve in blood coagulation process, cell division, growth, apoptosis and migration, recycling and transport across membranes.,
They participate the in activation of precursor proteins and zymogens.
Proteases provide immune support and regulate the process of tumour growth, metastasis, inflammation, etc.
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what is a reason if everyone in class does the same experiment with the exact materials and get different results
Explanation:
There is one a million chances that one person's experiment's result is correct and maybe the others are wrong.
Pharmacy practice regulation is primarily a function of the
Please answer ;-;
Which two factors are needed to calculate the velocity of an object?
A. Speed
B. Mass
C. Direction
D. Acceleration
Answer:
Required Answer:-To find velocity of a object we need 3 factorsMagnitude speedDistanceHence Here both option A and C are correctAnswer: A and C
Explanation:
got them right on my test
Describe the role of GA in a-amylase production and in germination. Provide evidence for your claim
Gibberellic acid (GA) plays a crucial role in a-amylase production and germination. GA stimulates the synthesis and release of a-amylase enzymes, which hydrolyze starch into sugars during germination. Experimental studies have demonstrated that the application of GA accelerates a-amylase production and enhances germination in various plant species
In terms of a-amylase production, GA stimulates the synthesis and release of this enzyme. a-amylase is responsible for breaking down starch into simpler sugars, which are then utilized by the plant for growth and development.
Studies have shown that applying GA to plant tissues or seeds results in an increased production of a-amylase, facilitating the conversion of stored starch into energy-rich sugars.
Regarding germination, GA is involved in breaking seed dormancy and promoting the growth of the embryonic plant.
It stimulates the production of hydrolytic enzymes like a-amylase, which enable the hydrolysis of starch reserves in the endosperm, providing the energy needed for germination and seedling establishment.
Additionally, GA helps in cell elongation and division, promoting the growth of the embryo and the emergence of the radicle.
Evidence for GA's role in both processes includes studies where the exogenous application of GA to seeds or plant tissues has been shown to enhance a-amylase production and promote germination.
Conversely, inhibiting GA synthesis or action results in reduced a-amylase activity and impaired germination. These findings support the critical involvement of GA in both a-amylase production and germination processes in plants.
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Why are theories never proved
Answer:
because there is always the possibility of new information that may show the theory to be incomplete or incorrect.
Exponential growth may occur sometimes, but populations never grow that way for very long.
A) True
B) False
It is false that exponential growth may occur sometimes, but populations never grow that way for very long.
Human populace boom is one of the maximum well-known examples of exponential boom due to its archetypical curve. We regularly seek advice from the graph of human populace boom as a “J-curve” due to the letter that so intently resembles its shape.
However, geometrical or exponential boom can't preserve indefinitely. In nature, populace boom have to in the end slow, and populace length ceases to increase. As assets are depleted, populace boom charge slows and in the end stops: This is called logistic boom.
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Certain unusual aspects of brain structure were observed in the brain of Albert Einstein. One interpretation is that he was born with certain differences in his cortex from others that encouraged his scientific and intellectual abilities. What do you think of this explanation and what do you think could be an alternative interpretation
Answer:
It seems a plausible inference. An alternative hypothesis is one in which this anatomical difference is present in low population frequency, thereby further scientific observations are needed to confirm (or reject) this hypothesis
Explanation:
Albert Einstein's brain exhibited an unusual anatomical conformation in the prefrontal cortex. Intriguingly, this brain area is involved in abstract thinking, thereby it has been suggested that the amazing cognitive capacities of Einstein may be due to his prefrontal cortex. A way to test this hypothesis is by an observational study with the aim at determining if this feature is exclusive of Einstein's brain.
Question 1 (Multiple Choice Worth 4 points)
(04.05 MC)
Which statement best describes two paths carbon dioxide can take through the carbon cycle?
The carbon cycle ends when carbon dioxide is released when plants die and decompose.
Diffusion moves carbon dioxide in the atmosphere to the oceans and the sea plants use carbon dioxide for photosynthesis.
O Carbon dioxide travels through the atmosphere through photosynthesis and cellular respiration.
Plants use carbon dioxide to perform cellular respiration and release carbon dioxide as a by-product.
Answer:
Option 2. "Diffusion moves carbon dioxide in the atmosphere to the oceans, and the sea plants use carbon dioxide for photosynthesis."
Explanation:
This statement describes two processes in the carbon cycle. First, carbon dioxide moves from the atmosphere to the oceans through diffusion. Once in the oceans, carbon dioxide can be taken up by sea plants during photosynthesis, in which carbon dioxide is used to make organic molecules like sugars. These organic molecules are then consumed by other organisms in the ocean, and the carbon is passed along the food chain. This process represents one path that carbon dioxide can take through the carbon cycle.
Why does a cat comes near when show it milk and runs away when you show it stick ?
Cats have evolved certain behaviors that are influenced by their natural instincts and experiences.
When a cat sees milk, it may be attracted to it because it contains nutrients that are important for its survival, and the cat may associate the presence of milk with positive experiences. This can include nursing from its mother as a kitten or catching and consuming prey that contains milk or milk products.
On the other hand, when a cat sees a stick, it may perceive it as a threat or danger, and may associate it with negative experiences, such as being hit or attacked by a predator. This can trigger the cat's natural instinct to flee or hide from potential danger, as a survival mechanism.
Overall, a cat's behavior is influenced by its instincts, past experiences, and environmental cues. It may approach things that it perceives as positive or beneficial, and avoid or flee from things that it perceives as dangerous or threatening.
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What are the major features of the moons surface
The Moon's surface is characterized by several major features that are observable from Earth and have been studied in detail through lunar missions. Some of the prominent features of the Moon's surface include:
Impact Craters: The Moon's surface is heavily cratered due to billions of years of impacts from asteroids, comets, and meteoroids. Impact craters come in various sizes, ranging from small to enormous, and they preserve evidence of the Moon's violent history. Some well-known craters include Tycho, Copernicus, and Kepler.
Rilles: These are long, narrow depressions or channels found on the lunar surface. Rilles can be sinuous, resembling dried riverbeds, or straight. They are thought to be formed by ancient lava flows or by the collapse of underground lava tubes.
Regolith: The Moon's surface is covered by a layer of loose, fragmented material known as regolith. It is composed of fine dust, small rocks, and larger boulders. The regolith is a result of billions of years of impact processes and micrometeorite bombardment.
Lunar Highlands Massifs: These are large mountains or massifs found within the lunar highlands. They are formed by the uplift and compression of crustal rocks during the Moon's early history. Notable examples include the Montes Apenninus and the Montes Carpatus.
Lunar Swirls: These are unique, bright patterns or streaks seen on the Moon's surface. Lunar swirls are associated with localized magnetic fields and are thought to be caused by the interaction of the Moon's surface with the solar wind.
Lunar Maria Domed Volcanoes: These are small, rounded volcanic features found in some maria. They are believed to have formed when magma pushed up from beneath the surface but did not erupt explosively. These domes often have smooth surfaces and can be several kilometers in diameter.
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Who do you believe is guilty of the murder? What evidence supports your conclusions? (4 points)
Right from time immemorial, guilty is considered a murder situation in as much as one as been confirmed truthfully responsible as what one as been charged of.
What is murder?This is a deliberate act of killing another being, especially human.This is a crime against humanity and it is punishable.
Guilty means to be responsible for a dishonest act especially judged to have committed a crime.
Evidence which shows that guilty is a murder is simply in the scriptural books such as the Bible and Qur'an. The judge in his book too has whatever one is guilty of as a murder in his book.
So therefore, right from time immemorial, guilty is considered a murder situation in as much as one as been confirmed truthfully responsible as what one as been charged of.
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Answer:
Steve O'Hare
Blood Type Match
Explanation:
The murderer was the boss, Steve O'Hare, because the blood on the door matched his blood, so he possibly struggled to kill her and she was able to hit him or try to defend herself which is possibly why his blood was on the door
An unspecialized cell that has the ability to differentiate into a particular type of cell is called what?
A. Nerve cell
B. Nuclear cell
C. Plant cell
D. Stem cell
Answer:
D
Explanation:
Stem cells develop into many different cell type in the body.
The moon snail is...
a. a carnivore that uses propodium to plow forward
b. know to live on mud and sand flats
c. a species of abalone
d. a species of cowry
e. choice a & b are correct
f. choice b & c are correct
g. choice a & c are correct
h. choice a & d are correct
The correct answer is e. The moon snail is a kind of carnivorous sea snail that digs through mud and sand in pursuit of prey using a muscular protrusion called a propodium.
The moon snail is a kind of carnivorous sea snail that digs through mud and sand in pursuit of prey using a muscular protrusion called a propodium. They can frequently be seen in coastal locations on mud and sand flats. As a result, choices a and b are both accurate. The moon snail is not a species of cowry or an abalone, so choices c and d are incorrect. The correct answer is e.
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The function of an intromittent organ is to:
transfer sperm to the female.
aid in external fertilization.
transfer pollen grains to the stigma.
Answer:
Explanation:
An intromittent organ is any external organ of a male organism that is specialized to deliver sperm during copulation. Intromittent organs are found most often in terrestrial species, as most non-mammalian aquatic species fertilize their eggs externally, although there are exceptions. For many species in the animal kingdom, the male intromittent organ is a hallmark characteristic of internal fertilization.
1 Explain why animals depend on plants to keep them alive.
2 Describe how carbon dioxide and water reach the chloroplasts in leaves.
3 Describe two pieces of evidence that show that plants cannot make their own food without light.
4 Starch tests show where photosynthesis has taken place. What can you conclude using the evidence from test 1?.
à5 What does the evidence from test 3 show?
1. Animals depend on plants to keep them alive is Plants are producers they take energy from the sun, nutrients from the earth, and water to grow and have their flowers, seeds, and berries.
They also release oxygen, which all animals, including humans, need to stay. Animals are consumers and they all depend on plants for survival.
2. carbon dioxide and water reach the chloroplasts in leaves is Basically the roots consume the water and transports it up the xylem, which gets it to the leaves. Carbon dioxide contacts the chloroplasts in the leaves via a stomata
3. Two pieces of evidence that show that plants cannot make their own food without light. When plants lack light, they don't deliver chlorophyll (the green pigment in plants), and plants can turn pale green to yellow to white. Plant stems become “leggy,” meaning stems become long and thin and appear to be advancing toward the source of light.
The photosynthesis is the only method for synthesizing food. It is commonly believed that about 717.6Kcal energy is required to prepare just 10g of glucose. No energy input no metabolism and therefore no food.How are leaves tested for starch?The existence of starch in leaves can be tested by the Iodine test. When we remove chlorophyll from the leaf by cooking it in alcohol and then placing two drops of iodine solution, it is a color change to blue indicates the existence of starch.
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Explain how diffusion restored homeostasis during the dialysis treatment.
During dialysis, diffusion facilitates the movement of waste products and excess fluids out of the blood, restoring homeostasis.
During dialysis treatment, diffusion plays a crucial role in restoring homeostasis. Homeostasis refers to the body's balanced state, where the levels of various substances are maintained within a narrow range. In the context of dialysis, diffusion refers to the movement of solutes across a semipermeable membrane.In hemodialysis, the patient's blood is circulated through a dialyzer, which contains a semipermeable membrane. On one side of the membrane, the patient's blood flows, while on the other side, a dialysate fluid flows. Due to a concentration gradient, solutes like urea, creatinine, and excess electrolytes in the blood diffuse across the membrane into the dialysate fluid.This diffusion process helps remove waste products and excess fluids from the blood, bringing it closer to the normal physiological range. By restoring the balance of solutes and maintaining proper fluid levels, diffusion in dialysis aids in restoring homeostasis and promoting the overall well-being of the patient.For more such questions on Dialysis:
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Explain why birds are more closely related to bats than butterflies even though they are able to fly
Answer:
bird's and bats have Bones inside their wings and butterflies don't...so that's why they aren't related
While bats and birds only have one pair of wings, insects have two pairs. While bat and bird wings have bones, insect wings don't.
How birds are more closely related to bats?Bird wings have feathers, butterfly wings have scales, and bat wings have exposed flesh. All of these creatures have developed wings as a result of their adaptation to living in the air.
The relationship between birds and bats is based on their behaviors rather than their ancestry. Even though bats and birds are not even remotely related, they both independently developed the capacity to fly.
Bats are mammals, just like people, only bats are true fliers among mammals, they fly by flapping their wings. Some mammals exclusively glide, like flying squirrels.
Therefore, bats and birds only have one pair of wings, while insects have two pairs.
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To reduce six molecules of CO2 to glucose by photosynthesis how many molecules of NADPH and ATP are required?
Answer : it takes six turns of the Calvin cycle to fix six carbon atoms from CO2. These six turns require energy input from 12 ATP molecules and 12 NADPH molecules in the reduction step and 6 ATP molecules in the regeneration step.
The apparatus shown below measures the oxygen consumed by a small animal. As oxygen is consumed, the water droplet moves closer to the flask. Because carbon dioxide is absorbed by the potassium hydroxide solution on the filter paper, it does not affect the results.
You are performing a lab in biology class to determine, quantitatively, if temperature affects the rate of oxygen consumption by a small animal. You will be testing the oxygen consumption of the animal at 0ºC, 15ºC, and 30ºC.
1) Write a prediction about the relationship between oxygen consumption and temperature. (1 point)
2) Using this apparatus, or a similar one, write a procedure to test your prediction. Procedures should be detailed, specific, and written in numbered point form. (2 points)
Since they have a greater metabolism, smaller creatures breathe more quickly.
What is Oxygen consumption of an Experiment?1. In general, the rate of oxygen consumption increases with the increase of temperature. So, here at 30 degree the rate of consumption will be the highest, then at 15 degree, at zero degree it will be ice droplets.
2. The aerobic bacteria present in the water respire in the presence of oxygen. at 0,15 and 30 degree. Here anerobic bacteria can be taken as a control.
So, a culture with medium of aerobic bacteria/yeast can be taken.
It is kept in shaking condition 150-200 rpm and then the temperature is kept at 37 degree.
Bacteria has a doubling time of twenty mins, and yeast has a doubling time of 90mins. So, it is kept at overnight incubation for proper growth of the bacteria. Water droplets are visible at the cap.
At 30 degree the consumption is maximum, then the 15 degree is relatively lower and higher is no consumption at 0 degree where it is frozen.
The oxygen consumption is related to the respiration rate of aerobic bacteria , yeast.
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