Answer:
B
Explanation:
An undifferentiated cell is such as that in a blastocyte. They are multipotent and can differentiate into any type of cells. The cells of the mass begin to have their gene differentially expressed (due to differential silencing of particular genes) hence the cell become determined. They become well organized into tissue such as skin and other organs.
Answer:
A
Explanation:
Asexual reproduction is a type of reproduction where offspring comes from a single parent.
B is incorrect because asexual reproduction requires only one individual, while sexual reproduction requires two.
C is incorrect because mutation rates are not lower in sexual reproduction than in asexual reproduction.
D is incorrect because lots of single-celled organisms, like bacteria, reproduce asexually.
Answer:
When the organism inherits a mutated gene creating new colored organisms into the population, this can increase diversity. As more organisms inherit the same mutation, the population will become more variated, which can increase the organisms abilities to survive and adapt in a changing environment, and also improve the biological fitness of individuals; resulting in allowing more organisms to reproduce successfully.
Explanation:
Answer: What's the rate of sperm production? Your testicles are constantly producing new sperm in spermatogenesis. The full process takes about 64 days. During spermatogenesis, your testicles make several million sperm per day — about 1,500 per second.
Explanation:
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