I'd say D because it is always good to have a goal for that, and if you plan it out, you have a better chance of reaching it.
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Chemical digestion, absorption and defecation.
Peritoneum membrane if the appendix is ruptured it can cause the infection to spread and can lead to death if not treated quickly or properly.
D. Lets go to the gym together, you pick the activity.
~Hello there!
Your question: In humans the number of sperm cells required to produce a pair of identical twins is ______.
Your answer: In humans the number of sperm cells required to produce a pair of identical twins is 2. 2 sperm cells are required to fertilize 2 eggs.
Any queries ^?
Happy Studying!