Answer:
nitrogen is an essential nutrient for sustaining life on earth, without it, plants would die, then herbivores due to starvation, and so on
Explanation:
It is the first choice, since that (P) is dominant to (p) so yeah Pp will be inflated
Here is how biologist study concept maps.
BIOSPHERE:
<span>ECOSYSTEMS:
</span>
COMMUNITIES:
POPULATIONS:
<span>ORGANISMS: </span>
ORGANS AND ORGAN SYSTEMS:
<span>TISSUES: </span>
<span>CELLS: </span>
ORGANELLES:
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The answer would be D being those are all learned or earned attributes.