The answer would be fats and proteins.
A) a common ancestor
Homologous structures are structures that are similar in related organisms. There is a basic pattern of bones which can be inherited from a common ancestor
<span> not sure Type B antibodies are formed in response to the B antigens.</span>
<em>it is in pounds that way to = 6613.8</em>
6613.8 is what i have figured.
The best example that illustrates a sensitive period is
letter b, where the child tries to learn in speaking a second language because
this is considered to be a sensitive period in which is the period for a
development of new opportunities that a child could learn in which learning to
speak a second language is considered to be a sensitive period.