Answer:
the earth is tilted and the sun goes down earlier some parts of the year
Explanation:
Chlorophyll absorbs sunlight to be used in photosynthesis; therefore, a plant producing higher levels of chlorophyll during summer would be advantageous because it is able to absorb more sunlight when more is available. This means that it could potentially use photosynthesis to create more glucose, which the plant uses for functions such as growth.
Answer:
e. Because gene flow between populations prevents genetic divergence in sympatry.
Explanation:
Speciation requires genetic divergence between populations of a species to isolate them reproductively. however, when present in the same habitat, gene flow between populations of a species does not allow their reproductive isolation and thereby, prevents the formation of new species. These populations need strong episodes of disruptive selection for their reproductive isolation.
On the other hand, two geographically isolated populations can not interbreed and thus, there is no gene flow between them leading to their genetic divergence and speciation. So, allopatric speciation is more common than sympatric one.
