Persons with Blood Type A have A type antigens and B type antibodies.
hormones send signal --> egg released from ovary --> egg travels to fallopian tube
Answer:
I think the answer is determining infectivity of a virus
Explanation:
hope that it will help you
Answer:
It ranks organisms by importance in evolutionary history.
B.
Explanation:
THere is no ranking in phylogenetic tree. It shows evolutionary history on the basis of closely related species.