<span>Answer:
Think of DNA-there are only 4 bases, but different combinations give infinite possibilities.
And the same for amino acids and proteins.
Immunoglobulins work on a similar principle. Different VDJ segments are combined for the heavy chain of an antibody. Different VJ segments are combined for the light chain.
Other ways:
Random nucleotides may be added or removed between the gene segments.
There are also different combinations of light and heavy chains.
Antibodies can be any of the 5 isotypes: IgA, IgM, IgG, IgE, IgD.
I'm not going to go into detail as this answer would take too long to write. Do some literature searching on B cells, V(D)J recombination, RAG genes, class switching.</span>
When describing a forest community, an ecological scientist would most likely include deer, wolf, tree. These are the prerequisites for a forest community because in most forests there are deer and wolves, as well as trees. But it's npt necessary that there would be water for example.
Anabolism stores energy and Catabolism releases energy
Answer:
When the mirror is inside the focal point..?
The correct answer will be
B. false