The 3rd answer is correct.
Answer:
I think the answer is B.
Explanation:
I think this because they have these variations to better adapt to conditions in their environments.
The electrons needed by photosystem ii originate from water.
Transcription Initiation. The first step in transcription is initiation, when the RNA pol binds to the DNA upstream (5′) of the gene at a specialized sequence called a promoter (Figure 2a). In bacteria, promoters are usually composed of three sequence elements, whereas in eukaryotes, there are as many as seven elements ...
it runs like a bike and fly like a kite.
