An unpleasant consequence that decreases the frequency of the response that produced it is called

What are two reasons for why a species might disappear from the fossil record?

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks