Answer:
25: B.
26: D.
27: C.
28: C.
29: A. (I'm not fully sure about this one....)
30: D.
31: B.
32: F. (Again, not fully sure, but <em>pretty</em> sure)
I’m almost 100% sure it’s D, because environmental factors can induce a mutation. A mutation can be beneficial but it can also be harmful, so it’s neither B or C, and it can’t be A, because mutations can come from natural selection as well. So it’s D.
A traveling clot that suddenly blocks a blood vessel is an embolism
An organic compound consists of carbon...
Toenail?
Correct me if I'm wrong.