50 POINTS PLS HELP!!! ALSO GIVING BRAINLEST Which statement best explains why each river has its own set of characteristics?

A. Rivers flow downhill, pulled by gravity toward the sea.
B. Rivers interact with the ecosystems through which they pass.
C. Rivers absorb oxygen from the atmosphere as they flow downhill.
D. Rivers have climates that are determined by the biomes they flow through.

A is the correct Ans

Explanation:

B C D options cannot explain why each river has its own set of characteristics.

I think the answer is B) "Rivers interact with the ecosystems through which they pass."

Explanation:

A, doesn't make sense to me, because maybe gravity does effect the river in some way, but it didn't really explain why or how.

C, also doesn't make sense, because I fail to see what characteristics would change, other than the color maybe. And even if the color does change, I'm guessing it would have to be a significant change in oxygen.

D, is not it either, because climate refers to weather not rivers.

Hope this makes sense :) Also if I'm correct could you mark me brainliest please?

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.