Answer:
C
Explanation:
eukaryotic cells do have a nucleus, so it would be wrong to say that they don't have a nucleus.
Answer:
B
Explanation:
They altered rocks into soil that was able to support simple plants such as grasses. This is an example of altering the environment around them to make it more habitable for other species.
Answer:
B.soil that is frozen solid all year
C.summer thaws combined with frozen permafrost
D.the overflow of a large lake each summer
An -NH2 group is an AMINO group.......
