Below are three different hypothetical scenarios of fish spe

Below are three different hypothetical scenarios of fish species occurrences in the fossil record, with the oldest ancestral species on the left and the more recent descendent species on the right. Traits such as spines and coloration are different in different species. Given what you\'ve learned above evolution in this lab, if these species have arisen by descent with modification from a common ancestor, which scenarios are plausible? scenarios A and B are plausible. But C is not. Scenarios A and C are plausible, but B is not. Only scenario A is plausible. All three scenarios are plausible You investigate four related species of birds and see the following pattern in the in the fossil record? That is, which trait is likely the oldest based on this Pattern?

Solution

Answer: Scenarios are plausible are A & B but C is not plausable

Reason:

In the above three different hypothetical scenarios of fish species occurrences in the fossil record the oldest ancestral species on the left. The more recent descendent species on the right and complex traits such as spines and coloration are different in different species as convergent or divergent evolution perspectives. Convergent morphological features and inheritance methods are different from fossil species to descendent species; Spotty fossils records with less available resources and evidences. Therefore, these developmental changes of spins & species coloration are transforming into differently in other species of different phylum and representing convergent evolutionary feature of developmental genes (A and B). If these species have arisen by descent with modification from a common ancestor, eliminated fossil species exhibit more gene variability than descended species because fossil species are quickly eliminated through the struggle for existence.