Answer:
In oxygenic photosynthesis, the first electron donor is water, creating oxygen as a waste product. In anoxygenic photosynthesis various electron donors are used. Cytochrome b6f and ATP synthase work together to create ATP. This process is called photophosphorylation, which occurs in two different ways.
Explanation:
Irrigation
Preparation of soil is the first step before growing a crop
Enables an organism to survive.
an adaptation is a modification so that an organism can live in its environment.<span />
I'm not exactly sure why the other person put HELPING the host- THEY DON'T HELP AT ALL. They actually <em>harm</em> the host.
<h3><em>Hope this helps-</em></h3>