It would be uracil (C)
thymine would be complementary to adenine in DNA but because it is RNA it is replaced by uracil.
The first one, cause their trying to make it a positive way to reinforce. Which just means their trying to fix something again
Increasing cloud cover, since it’ll block off any sunlight
Answer:
An ecosystem is biotic, not abiotic.
Explanation:
First, an ecosystem is a biological community of interacting organisms and their physical environment. Second biotic factors are nonliving things whereas biotic factors are living things in an ecosystem you have your producers or plants which then will be consumed by the primary consumers. With the primary consumers feeding the next group of consumers and then the next and then after they die they fertilize the ground allowing the producers to grow as it completes the circle of life.
When 2 species bennift like fish cleaning a whale by eating off his skin
