Answer:
The answer is Physical. Physical immunity occurs when a person immune system responds to antigen.
Explanation:
The function of a protein is determined by its shape. The shape of a protein is determined by its primary structure (sequence of amino acids.) The sequence of amino acids in a protein is determined by the sequence of nucleotides in the gene (DNA) encoding it.
The branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
answer of the question: B
False, Animal cells do “not” have cell walls.
