<span>in addition to resemble one another, the other criteria that are required for organisms to be group in the same species is : D. they reproduce with only one another
Dog and Wolf for example. They have very similar resemblance, but since they could create and offspring if theyre copulating, both of these animals are not in a same species</span>
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into nitrate which is the most usable form of nitrogen in the soil. Nitrate is absorbed by the roots of the plants, from plants nitrogen reaches to animals when they eat plants.
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Organelles that are bound by a membrane, these include mitochondria, chloroplasts, lysosomes, vacuoles, and nuclei. Membrane bound organelles are usually found in eukaryotic cells.
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Every cell has a limit of surface area to volume ratio to ensure that the exchange of resources and waste occurs quickly enough for the cell to survive. If cells were too big, diffusion would take an extremely long time, and a cell could die from starvation or poison itself with its wastes
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NAD+ act both as coenzyme as well as electron acceptor compound and get reduced to NADH by accepting electron.
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NAD+ act as co enzyme of various biological catalyst such as malate dehydrogenase, isocitrate dehydrogenase etc.
NAD+ can act as co enzyme only in its oxidized form but not in its reduced form called NADH.
Many reaction needs NAD+ to occur such as conversion of glyceraldehyde 3 phosphate to 1,3 bisphosphoglycerate, malate to oxaloacetate.
That"s why NAD+/NADH ratio is kept very high because if this ratio bychance get low then it will hamper the normal redox potential of NAD+/NADH.As a result many biochemical reaction will not take place.