PDF chapter test TRY NOW

Answer the following:
 
1. Why is variation beneficial to the species but not necessarily for the individual?
 
Answer:
 
2. Why is DNA copying an essential part of the process of reproduction?
 
Answer:
 
3. How does the embryo get nourishment inside the mother’s body?
 
Answer:
 
Long answer questions:
 
4. Distinguish between a gamete and zygote. Explain their roles in sexual reproduction.
 
Answer:
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