<span>the two chromosomes that make up a homologous pair differ as</span> they contian different alleles for the same trait
Rounded seeds are 1/4 I think...
<span>It means that they only act on certain types of substrates. Each enzyme is </span><span>specific in that they do not work for all molecules.</span>
<span> It is largely a supportive structure and is part of the secondary thickening of tall </span><span>plants</span>
A abiotic factor because it is a nonliving thing in our ecosystem.