I do not get it can you explain any better
I think it is D. The National Institutes of Health found it effective in reducing pain and other symptoms, but it is not clear how it works.
<span>Studying the changes in densities of pocket gophers when large herbivores such as elk are excluded from mountain forests would be an example of studying ecology at the community level.
A community refers to a group of organisms of various species that live in the same location and interact with each other. So, if this scientist is observing gophers and elks, they are looking at the level of communities, not anything more or less.
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DNA and Genes are linked because dna is made up of genes in one way or another
