Answer:
The bacteria found on roots, mainly on legumes, are related to the nitrogen cycle because nitrogen found in the environment is not usable by many species but because the bacteria can "fix" the nitrogen, it is usable by the plant which in turn it returned into the environment.
Explanation:
Answer:
A
Explanation:
Reptiles arose about 310–320 million years ago during the Carboniferous period.
<span>Populations of a short type of sunflower are identified as a new species under the conditions that </span>they are unable to breed with the sunflowers of the original population.
Answer:
C
I inserted an image for reference.