Evolutionary Relationships

Front

__________  is the study of embryos to see how their similarities and differences indicate an evolutionary relationship.

Back

Embryology

Front

In stage one (top row) of these embryos, most of the embryos________

Back

look very similar.

Front

In stage 2 (middle row) fish embryos _________

Back

are very different bird and mammal embryos.

Front

In the third embryonic stage (bottom row), mammal embryos _____

Back

have more characteristics in common with each other than with reptiles or birds.

Front

The more similar the stages of embryonic development, the more likely that organisms share ____________

Back

a common ancestor.

Front

The structures shown are_________

Back

homologous

Front

Back

Analogous

Front

According to this cladogram, sharks are MOST closely related to which organism? Amphibians, Ray finned fish, Crocodiles, Birds

Back

Ray finned fish

Front

All the animals to the right of the hagfish would have the common characteristic of -

Back

Jaws

Front

Which trait(s) do conifers have? Options: vascular tissue only, vascular tissue and seeds, vascular tissue, seeds and flowers, seeds only

Back

vascular tissue and seeds