D. Bright Echo with a comet tail or ring down artifact. I hope this helps, my sister is a nurse so I know a few things.
Answer:
I think B because This began a scientific collaboration which helped establish "genetics" at Cambridge
<span>Trophic level is level in the movement of energy through an ecosystem. It describes the organism's feeding status in an ecosystem.
</span>An organism that feeds at several trophic levels is an example of a carnivore (<span>animal that gets food from killing and eating other animals.).</span>
Answer:
<h2><u><em>
Evolution</em></u></h2>
Explanation:
In order for species to survive over generations, they will have to adapt. Adaptation is a form of evolution.
I hope this helps!