It is called haemogloblin.
Answer:
A)Fixation. Nitrogen in its gaseous form (N2) can't be used by most living things
B) it can not be used because it most be converted or, ’fixed’ to a more useable form. To do this it goes through a process called fixation.fixation is the change in a gene pool from a situation where there exists at least two variants of a particular gene (allele) in a given population to a situation where only one of the alleles remains.
C) This form can be made more usable if it’s converted. It has to go through the process of fixation so the gene pool changes.
Explanation:
Because high estrogen halts bone growth
There are many different types of non-chlorophyll<span> accessory pigments, but some of the most common are </span>carotenoids<span>, phycocyanins, and </span>phycoerythrins.Carotenoids<span> (caroten meaning 'carrot') are a group of some 600-700 different types of accessory pigments that reflect </span>red<span>, orange, and yellow wavelengths.</span>