Answer;
both positive and negative
Explanation;
-The elephant are keystone species, playing an important role in maintaining the biodiversity of the ecosystems in which they live. They may have both negative and positive interactions to the environment. For example, during the dry season, elephants use their tusks to dig for water, which has a positive impact to the surrounding.
-They clear large amounts of vegetation, which removes habitats for some organisms but makes the area inviting for other organisms. This has both positive and negative impact to the ecosystem.
Evidence of common descent is a hypothesis that two organisms from different species are related to each other. !
Answer:
they control small specific functions in the cell
Explanation:
genes are very crucial in every organisms since they determine the tiniest composition of the cell,evolving from the parent organism.