Answer:
It is essential for all living things. Fixation: In order for organisms to use atmospheric nitrogen (N2), it must be “fixed” or converted into ammonia (NH3).
Explanation:
Answer: A scarcity of lemmings will cause for the population of snowy owls to decrease, as their resources have been limited.
a nucleolus is a small spherical structure found in the nucleus of a cell, it takes up about 25% the space in rhe nucleus and synthesises ribosome