While studying evolution a student comes across a cladogram that includes clades like amphibia, reptilia, aves, and mammalia. what must be the basal clade?

a. plantae
b. chordata
c. nonchordata

B. chordata

Explanation:

The amphibia, reptilia, aves and mammalia, are all animals that exists in the reign of the animalia, and they are part of the Chordata basal clade, this means that they all have durign a certain period of their lives a notochord, that can be found in the spine.

yes

explanation:

why

although the crusades failed to capture jerusalem, they had several major impacts on western europe. they increased the authority of the king: sometimes nobles died in battle without leaving an heir in which case the king got their land. kings passed taxes to pay for the crusades.