Evo concept check

The scientific theory of evolution is supported by different types of evidence. The diagrams below show the skeletons of two different animal species. How does comparing the skeletons of these animals provide support for the scientific theory of evolution?

• It provides information about the organisms' habitats.

• It shows possible common ancestry between organisms.

• It provides information to determine the organisms' ages.

• It shows possible chromosomal similarities between organisms.

Scientists are studying the evolutionary history of a group of plants in the United States, and they developed an evolutionary tree, as shown below.

Which statement can be inferred from the evolutionary tree?

• A. Species 1 is most closely related to Species 8.

• B. Species 2 is most closely related to Species 3.

• C. Species 3 is most closely related to Species 7.

• D. Species 5 is most closely related to Species 6.

Structures that are inherited from a common ancestor are homologous.

• True

• False

Humans, birds, whales, and lizards all have similar arm bones. What is the reason for this?

• The function of these bones is the same in all animals

• They live in similar environments

• They have a common ancestor

• All organisms resemble humans

Bird wings and butterfly wings are an example of

• Homologous structure

• Analogous structure

• Mimicry

• Camouflage

Analogous structures show common ancestry.

• True

• False

Which of the following pieces of evolution evidence contain both homologous and vestigial structures?

• fossil record

• comparing embryology

• comparing biochemistry

• comparing anatomy

If an organism has a vestigial structure, that structure likely once had a function in a(n)

• embryological stage

• unrelated organism

• Idk

• early ancestor