Natural Selection Quiz | Structures

Question 1

What are Homologous Structures?

Answer 1

Structures that show individual variations on a common theme of anatomy (like similar bone structure)

(They are/can be found within organisms that are closely related)

Question 2

What is an example of two organisms with Homologous Structures?

Answer 2

A good example can be a Human and a Monkey

Question 3

What are Analogous Structures?

Answer 3

Structures that have very different anatomies, but similar functions

(They are/can be found within organisms that are not closely related, but live in similar environments and have similar adaptations)

Question 4

What is an example of two organisms with Analogous Structures?

Answer 4

A good example can be a bird and a bat

Question 5

What are Vestigial Structures?

Answer 5

Structures that are anatomical remnants (being important to past ancestors), but are no longer used as much/in the same way

Question 6

What is an example of instances of Vestigial Structures?

Answer 6

A few good examples are: Whale fin thumbs, Human wisdom teeth, Human tailbones, and many others!