Question

Evidence suggests that the crocodiles are more closely related to the birds than the turtles and snakes. If so, then including crocodiles, but not birds, in the Class Reptilia would make the Class ReptiliaA. a paraphyletic group.

B. a polyphyletic group.
C. a monophyletic group.
D. parsimonious.
E. not homologous.

Answer 1

The correct answer is - option A.

Step-by-step explanation:

A paraphyletic group is a group of organism that include only some of descendant of an ancestor. When there is group of organism that are not come from different common ancestor and are unrelated.

A monophyletic is a group of organisms of all the descendants of a common ancestor. In the given case the crocodile, reptiles, and turtles are present in class Reptillia even though crocodile is more closely related to birds. It is belong to the paraphyletic group.

Thus, the correct answer is - option A.

Answer 2

Answer: Option A

Step-by-step explanation:

A paraphyletic group can be defined as the group of organism that includes the ancestors but not all of its descendants.

There are three kinds of phylogenetic groups that can be understood by the help of the diagram.

The phylogeny can be defined as the diagram which shows the evolutionary relationship of one organism from another.

Other groups are monophyletic groups, parsimonious et cetera which shows different evolutionary relationship with organisms.