B) antigen, should be your answer
T cell, antibody, and histamine are all created by your body to help combat wounds or foreign substances
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Answer:
A
Explanation:
Mutations can occur in either cell type. If a gene is altered in a germ cell, the mutation is termed a germinal mutation. Because germ cells give rise to gametes, some gamete s will carry the mutation and it will be passed on to the next generation when the individual successfully mates.
Answer:
The Highlands are older as evidenced by their crater density.
Explanation:
Cells that perform similar functions combine to form tissues.
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Explanation:
The hypothesis that eukaryotic cells evolved from a symbiotic association of prokaryotes—endosymbiosis—is particularly well supported by studies of mitochondria and chloroplasts, which are thought to have evolved from bacteria living in large cells.