Answer:
if sex cells were identical, there won't be genetics variations and we will just all be identical to our parents. genetic variation allows us to better adapt and survive
Answer:
c. extensor digitorum
Explanation:
the extensor digitorum communis extends the phalanges, then the wrist, and finally the elbow. It tends to separate the fingers as it extends them. In the fingers, the extensor digitorum acts principally on the proximal phalanges, acting to extend the metacarpophalangeal joint.
Your answer is sexual reproduction. Sexual reproduction is when two distinct types of reproductive cells known as gametes fuse together, involving female's egg and male's sperm.
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