Answer:
a. When a fetus is 13-15 weeks old
Explanation: is correct
<span>Fireflies
use the bioluminescence to attract mates for mating hence key in reproduction.
Therefore, beetles from different species should have different lighting
patterns so that they can only attract mates of the same species. This would
avoid interspecies mating which would probably involved expending energy in
produce nonviable offspring which is inefficient (hence will be unfavoured
natural selection). </span>
Answer:
B
Explanation:
Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
Answer:
introducing a statement or idea which reverses one that has just been made or referred to.
Explanation: