Cell-mediated immunity <span>provides defense against viruses, abnormal cells, and other intercellular pathogens.</span>
Answer:
During interphase (1), chromatin is in its least condensed state and appears loosely distributed throughout the nucleus. Chromatin condensation begins during prophase (2) and chromosomes become visible. Chromosomes remain condensed throughout the various stages of mitosis (2-5).
Explanation:
a. vitamins.
b. everyday.
I'm not 100% sure on b. but a. has to be vitamins.
This dispersal reduces the likelihood that a sperm will find an egg. Many sperm and eggs die before achieving fertilization. The low success rate of external fertilization puts animals at a reproductive disadvantage compared to internal fertilization.
