I think it’s a. I am not 100% sure but I think that’s what it is. I am very sorry if it’s incorrect
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.
C. In anaerobic exercise muscles do not use oxygen. In aerobic exercise muscle use oxygen.
Answer:
well, I'm no college student but using common sense you need more than one so when one fails the other can come in and hopefully succeed.
Explanation:
