hi pls help if u can,, will mark brainliest
1. How many food chains make up the food web?
2. Which organism is an herbivore?
3. Which organism is an autotroph?
4. Which organism is a third-order heterotroph? To what trophic level does that organism belong?
5. Which organism is an omnivore?
6. Which organisms belong to more than one food chain?
7. Which organism belongs to more than one trophic level?
8. What are decomposers? From which trophic levels are the organisms that decomposers feed on?
9. What does a pyramid of energy show about the amount of energy available at different trophic levels of a food chain?
10. Why do different trophic levels have different amounts of energy?
Answers
Answer:
1. 3
2. insects
3. plants
4. snakes the 4th
5. birds
6.plant, bird, insect, snake
7. birds
8. Decomposers are organisms (bacteria and fungi) that break down dead organisms. They could be at all trophic levels
9. pyramid of energy shows how much energy is retained in the form of new biomass at each trophic level, while a pyramid of biomass shows how much biomass (the amount of living or organic matter present in an organism) is present in the organisms.
10. energy is lost at each level. Most of the energy lost is lost as heat. Food webs and food chains both involve multiple trophic levels.
Related Questions
What is a potential consequence of the rise in global temperatures?
A. Increased exposure to UV light due to ozone depletion
B. Increase in ocean pH threatening the survival of marine organisms that require calcium carbonate
C. Decrease in the number and severity of storms due to the increased evaporation
D. Changes to circulating ocean currents
Answers
Increase in ocean pH threatening the survival of marine organisms that require calcium carbonate is a potential consequence of the rise in global temperatures.
Acidic seas brought on by global warming destroy marine animal shells, endangering their ability to survive.Ocean acidification brought on by rising carbon dioxide levels makes seawater corrosive to calcium carbonate-based shells.Protective skeletons and shells of marine animals become less solid and less thick due to the corrosive seawater.The alterations endanger the entire food chain in addition to being terrible for the animals themselves.Various assumptions about projected rates of population growth, economic expansion, energy demand, technology improvement, climate mitigation, and other aspects are used to create the scenarios.Marine species have been affected by many major extinctions more severely than terrestrial species, with the Permian-Triassic mass extinction, which killed 95% of marine and 70% of terrestrial vertebrate species, causing the greatest loss of life.To know more about Calcium-Carbonate check the below link:
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where do the instructions used to create proteins originate
A. the brain
B. the nucleus
C. the ribosomes contain all the instructions
Answers
B. The nucleus provides the instructions for making proteins.
The genetic code, which is composed of DNA and RNA molecules, is found in the nucleus. The blueprints for making proteins are found in these molecules.
The ribosomes, which are in charge of interpreting the instructions and making the proteins, are then given the instructions.
Although the nucleus provides the instructions, the equipment for making proteins is found in the ribosomes.
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Deirdre and Geoff are Shannon’s parents. Deirdre has albinism. What is Deirdre’s genotype?
Geoff does not have albinism. However, Geoff did produce an offspring that had albinism when he mated with Deirdre. Therefore, what must Geoff’s genotype be?
Answers
The genotype of Deirdre is "aa" and the genotype of Geoff is "Aa".
Albinism is a recessive genetic disorder that is caused by mutations in genes involved in the production of melanin pigment. Individuals who are homozygous recessive for the mutant allele at the gene locus that controls melanin production will have albinism.
Since Deirdre has albinism, she must have two copies of the recessive allele for the gene locus that controls melanin production. Therefore, Deirdre's genotype is aa, where 'a' represents the recessive allele for albinism.
Geoff does not have albinism, which means that he must have at least one copy of the dominant allele for normal melanin production. Therefore, his genotype could be either Aa where 'A' represents the dominant allele for normal melanin production.
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Aside from human impact, which of the following causes less water vapor production over a small area?
Answers
Solar radiation warms earths surface and atmosphere and _____ gasses absorb the energy and radiate it back toward Earth’s surface.
Answers
Answer:
solar
Explanation:
Which of the following is an example of an anabolic reaction?
a. Hydrogen peroxide (H₂O₂) being broken down into water (H₂O)
and oxygen (O₂)
b. Glucose being used by the mitochondrion to create ATP
c. The chemical processes of food digestion
d. Carbon dioxide (CO₂) and water (H₂O) combined to form glucose
Answers
d. Carbon dioxide (CO₂) and water (H₂O) combined to form glucose is an example of an anabolic reaction. Anabolic reactions are those that build up complex molecules from simpler ones, while catabolic reactions break down complex molecules into simpler ones. In this case, glucose is a complex molecule that is being built up from simpler molecules (CO₂ and H₂O).
are topoisomerases include dna gyrase, a eukaryotic enzyme, which introduces negative supercoils into dna.
Answers
Topoisomerases are enzymes that introduce or alter the topology of DNA during replication, transcription, recombination, and chromatin remodeling. DNA gyrase is a topoisomerase found in bacteria that introduces negative supercoils into DNA during DNA replication or transcription.
In eukaryotic cells, topoisomerases I and II are responsible for maintaining DNA topology. Topoisomerase I relaxes DNA by breaking a single strand of DNA and rejoining it, while topoisomerase II introduces negative supercoils in DNA and disentangles intertwined DNA strands.The answer to the question "Does topoisomerases include DNA gyrase, a eukaryotic enzyme, which introduces negative supercoils into DNA?" is no. DNA gyrase is a type of topoisomerase, but it is found in bacteria, not eukaryotic cells. Eukaryotic cells use topoisomerase I and II to maintain DNA topology.#SPJ11
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Sunlight hits different locations on Earth with varying intensity. How does this
differential heating affect the atmosphere?
A. At the equator, insolation is less intense, so the air is warmer and
rises.
B. At the equator, insolation is more intense, so the air is warmer and
rises.
C. At the equator, insolation is less intense, so the air is warmer and
sinks.
D. At the equator, insolation is more intense, so the air is warmer and
sinks.
Answers
The differential heating affect the atmosphere because at the equator, insolation is more intense, so the air is warmer and rises and is denoted as option B.
What is Insolation?This is a term which is referred to as the amount of solar radiation that is received by a planet. The energy in this process has some absorbed and reflected in the atmosphere and is more intense at the equator.
This high intensity causes the air to be heated which makes it warmer and rises up and is therefore the reason why option B was chosen as the correct choice.
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Which of the following is not a part of the positive feedback that drives the rising phase of the action potential? Select one: ONa+ channel gating Ob voltage-gated channels depolarization Od Na+ channel inactivation
Answers
Na+ channel inactivation is not a part of the positive feedback that drives the rising phase of the action potential.
Option (c) is correct.
During the rising phase of an action potential, positive feedback mechanisms drive the depolarization of the cell membrane. These mechanisms involve the opening of voltage-gated Na+ channels (option Na+ channel gating) and the influx of Na+ ions, leading to further depolarization of the membrane.
Option c, Na+ channel inactivation, is not a part of the positive feedback process during the rising phase of the action potential. After the Na+ channels open and allow the influx of Na+ ions, they undergo a process called inactivation. This occurs shortly after the channels open, and it involves a mechanism that blocks further Na+ influx and contributes to the repolarization of the membrane. Inactivation is an essential step that helps regulate the duration and magnitude of the action potential.
In summary, while options Na+ channel gating and depolarization are involved in the positive feedback mechanism during the rising phase of the action potential, Na+ channel inactivation is not part of the positive feedback process but rather plays a role in the subsequent repolarization phase.
Therefore, the correct option is (c).
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Which of the following is not a part of the positive feedback that drives the rising phase of the action potential? Select one:
a) Na+ channel gating
b) voltage-gated channels depolarization
c) Na+ channel inactivation
e) None of the above
For fruits/vegetables, why do some sugars exist in simple forms and some sugars in complex forms?
Answers
Simple sugars are a type of carbohydrate. Carbohydrates are one of the three basic macronutrients — the other two being protein and fat.
Simple sugars are found naturally in fruits and milk, or they can be produced commercially and added to foods to sweeten, prevent spoilage, or improve structure and texture.
Monosaccharides are the simplest carbs, in that your body cannot break them down further.
This allows your body to absorb them quickly and easily, with the exception of fructose.
There are three types of monosaccharides (1Trusted Source):
Glucose: Fruits and vegetables are natural sources of glucose. It’s also commonly found in syrups, candy, honey, sports drinks, and desserts.
Fructose: The primary natural dietary source of fructose is fruit, which is why fructose is commonly referred to as fruit sugar.
Galactose: The main dietary source of galactose is lactose, the sugar in milk and milk products, such as cheese, butter, and yogurt.
9. what is the problem with dna that is bound to histones and compacted? when might chromatin need to be remodeled, and why?
Answers
Makes DNA inaccessible to interaction with important nonhistone proteins.
To relax its compact structure but be able to reverse the process during periods of inactivity
DNA- Deoxyribonucleic acid, also known as DNA, is the molecule that carries the genetic material necessary for an organism's growth and operation. The structure of DNA is a double helix, which is made up of two connected strands that loop around one another to resemble a twisted ladder.
Non-Histone Protein- After all of the histone proteins have been eliminated, non-histone proteins are what remain in chromatin. Histone proteins come in five main categories: H1/H5, H2A, H2B, H3, and H4.
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what type of biomolecule contains phosphorus
Answers
Answer:DNA,RNA,ATP
Explanation:
What is the role of the cell membrane?
to control the functions of the cell
to provide a firm structure for the cell
to control what enters and leaves the cell
Answers
Answer:
To control what enters and leaves the cell.
Explanation:
The role of the cell membrane is to control what enters and leaves the cell.
what is the largest organ in human body?
Answers
Answer:
The liver
Explanation:
The liver is the largest internal organ in the body, which is about 3.5 pounds! Then, followed by the brain, lungs, heart, and kidneys.
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solve it according to the question please.
the subject is petroleum, so please solve it regardibg
this.
F- Explain the global carbon-climate cycle during the Cretaceous period. (Write only one paragraph describing what happened during the Cretaceous geological period in order to have good source rocks.)
Answers
During the Cretaceous period, high temperatures and abundant vegetation resulted in increased \(CO_2\) levels, leading to the accumulation of organic matter and the formation of good source rocks for oil and gas.
During the Cretaceous period, spanning from approximately 145 to 66 million years ago, the global carbon-climate cycle played a crucial role in the development of favorable conditions for the formation of good source rocks. The period was characterized by high global temperatures and abundant vegetation, resulting in increased carbon dioxide \((CO_2)\) levels in the atmosphere.
The elevated \(CO_2\) levels fueled vigorous photosynthesis, leading to the accumulation of organic matter in marine and terrestrial ecosystems. As this organic matter was buried and subjected to heat and pressure over millions of years, it transformed into oil and gas, creating potential source rocks. The warm climate and prolific vegetation during the Cretaceous, along with the subsequent geological processes, contributed to the formation of the rich hydrocarbon reserves that are vital to our energy resources today.
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The correct question is:
Explain the global carbon-climate cycle during the Cretaceous period. (Write only one paragraph describing what happened during the Cretaceous geological period in order to have good source rocks.)
If the average high temperature in GR is 30 degrees in January and the average temperature in Miami is 74 degrees, what is the difference between high temperatures?
Answers
Answer:the equator
Explanation:
Where does the energy come from for many ecosystems
Answers
which of the following is not an example of a negative feedback loop?
Answers
Answer:
Birth is an example of a normally occurring positive-feedback mechanism.
Answer:
D. Labor in childbirth
I think i have seen this question before and that is what i remember.
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6. The world's four huge oceans are all connected to form one enormous global ocean. true or false.
Answers
Answer:
False
Explanation:
What is the name that is given to a symbiotic relationship in which both species benefit?
commensalism
mutualism
parasitism
predation
Answers
Answer:
Explanation:mutualism is the answer
In mutualism, both organisms in the symbiotic relationship are benefited.
What is a symbiotic relationship?A symbiotic relationship is a relationship between two or more organisms in which or both organisms are benefited without causing harm to either of the organisms in the relationship.
Types of symbiotic relationship are:
mutualism andcommensalismIn mutualism, both organisms in the symbiotic relationship are benefited.
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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.
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Which of the following are pictured below?
A. Nuclear Envelope
B. Sister Chromatids
C. Spindle Fibers
D. Homologous Chromosomes
Answers
Answer:
B) sister chromatids
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Please help ASAP!!!
In the formation of pollen grains, the nucleus in the pollen will divide by mitosis to form two nuclei. Justify.
Answers
Answer:
The other two, the generative nuclei, can be thought of as non motile sperm cells. After reaching an ovule and breaking out of the pollen tube tip, one generative nucleus unites with the egg cell to form a diploid zygote.
Explanation:
This means that;
The fertilized egg with two complete sets of chromosomes, one from each parent. The zygote undergoes a limited number of divisions and gives rise to an embryo.
Does isolation of a bacterium such as Streptococcus pyogenes from the throat imply the person is ill or will become ill? Explain.
What does it mean when a human is described as a carrier? Why is the rapid diagnosis of strep pharyngitis important?
Answers
Isolation of Streptococcus pyogenes from the throat does not necessarily indicate current illness or future illness. Carriers can harbor the bacteria without symptoms. Rapid diagnosis of strep pharyngitis is important for timely treatment, accurate diagnosis, and prevention of complications.
Isolation of a bacterium such as Streptococcus pyogenes from the throat does not necessarily imply that the person is currently ill or will become ill. It indicates the presence of the bacteria in the throat, but the person may or may not exhibit symptoms of an infection.
Streptococcus pyogenes is a common bacterium that can cause various illnesses, including strep throat. However, individuals can carry the bacteria in their throat without experiencing any symptoms. These individuals are referred to as carriers. Carriers can potentially transmit the bacteria to others, leading to infections in susceptible individuals.
Rapid diagnosis of strep pharyngitis (strep throat) is important for several reasons. Firstly, it helps in the appropriate management of the infection through the timely initiation of antibiotic treatment. This reduces the duration of symptoms, minimizes complications, and decreases the risk of spreading the infection to others. Secondly, identifying strep throat promptly allows for accurate diagnosis and helps differentiate it from other causes of sore throat, such as viral infections, which do not require antibiotics. Lastly, early diagnosis and treatment help prevent potential complications associated with untreated strep throat, such as rheumatic fever or kidney inflammation.
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match the following.1.pituitary glandtransports food from mouth to stomach2.esophagusstorage of bile from liver3.kidneyspurify blood and produce urine4.red bone marrowcontrols endocrine glands5.gall bladderproduce blood cells
Answers
Terms are:- Pituitary gland, Esophagus, Kidneys, Red bone marrow and Gall bladder.
1. Pituitary gland - The pituitary gland is responsible for controlling endocrine glands in the body. It is often referred to as the "master gland" because it regulates various functions, such as growth, blood pressure, and reproduction.
2. Esophagus - The esophagus transports food from the mouth to the stomach. It is a muscular tube that actively pushes food downwards through a process called peristalsis, allowing for proper digestion.
3. Kidneys - The kidneys play a crucial role in purifying blood and producing urine. They filter waste products and excess substances from the bloodstream, helping to maintain the body's fluid and electrolyte balance.
4. Red bone marrow - Red bone marrow is responsible for producing blood cells, including red blood cells, white blood cells, and platelets. These cells are vital for oxygen transportation, immune response, and blood clotting, respectively.
5. Gall bladder - The gall bladder is involved in the storage of bile, which is produced by the liver. Bile aids in the digestion and absorption of fats within the small intestine. When needed, the gall bladder releases bile into the digestive tract.
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if aabb is mated to match aabb what is the probability that the offspring will have either the penotype aab-or the genotype aabb
Answers
When mating two parents with the genotype aabb, the offspring has a 50% chance of having either the phenotype aab- or the genotype aabb.
This is because half of the offspring will receive one allele from each parent, and half will receive two alleles from one parent. This means that the probability of having either the penotype aab- or the genotype aabb is 0.5 x 0.5 = 0.25, or 25%.
If two organisms with the genotype aabb are mated together, the probability that their offspring will have either the phenotype aab- or the genotype aabb is 50%.
This is because the probability of any one allele passing from parent to offspring is 50%. Therefore, the probability of both alleles passing from parent to offspring is 50% x 50% = 25%, giving the same probability for either of the two alleles passing from parent to offspring to be 50%.
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*HELP ASAP* There are multiple lines of evidence that provide support for common ancestry and evolution. Write 3-4 paragraphs describing at least three of them in detail. Provide at least one example for each line of evidence.
Answers
Answer:
Determining a substance's physical or chemical identity. What are the two main requirements for identification? The adoption of testing procedures that give characteristic results for specific standard materials and the number and type of tests needed to identify a substance to exclude all other substances.
Answer:
The adoption of testing procedures that give characteristic results for specific standard materials and the number and type of tests needed to identify a substance to exclude all other substances.
Explanation:
What happens when ATP is converted into ADP?
Answers
Answer:
The Nature of ATP
Explanation:
When one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and ATP is converted to adenosine diphosphate (ADP) This free energy can be transferred to other molecules to make unfavorable reactions in a cell favorable. When the terminal (third) phosphate is cut loose, ATP becomes ADP (Adenosine diphosphate; di= two), and the stored energy is released for some biological process to utilize.
What form of cell division results in unique combinations of
chromosomes and genes within chromosomes?
Select one:
O Both mitosis and meiosis
ONeither mitosis nor meiosis
O Mitosis only
O Meiosis only
Answers
Answer:
Meiosis only
Explanation:
help?????????????trdgdgdrd
Answers
Answer:
B
Explanation:
its facing more to the east