Homologous Structures Lesson

Multiple Choice

Which is used as a basis for comparative anatomy?

• Similar & different body structures

• Similar & different ecosystems

• Similar & different niches in environments

• Similar & different behaviors

Multiple Choice

How do homologous structures provide evidence for evolution?

• Similar structures from a common ancestor

• Different structures from a common ancestor

• Useless body parts that were useful in the past

• Similar timing and stages from a common ancestor

Multiple Choice

Modern birds and therapod dinosaurs have homologous structures.  Which can be concluded about the two organisms?

• They have a common ancestor

• They do not have a common ancestor

• They evolved in a similar environment

• They are unrelated

Multiple Choice

Why do organisms with analogous structures LOOK similar?

• Their structures evolved for the same environment

• They share a common ancestor

• Their structures evolved and are now considered useless

• They liked the way other organisms looked

Multiple Choice

Bird wings and insect wings are analogous structures.  Which can most likely be concluded from this information?

• They have a common ancestor

• Birds evolved from insects

• They do not have a common ancestor

• They live in different environments

Multiple Choice

How do analogous structures provide evidence for the theory of evolution?

• They provide evidence of common ancestry.

• They provide evidence that different species have evolved to adapt to different environmental pressures.

• They provide evidence that species evolve because they are remnants from ancestral forms.

​1. Human arm & whale flipper

2. Bat wing & whale flipper

3. Penguin & ostrich wings

4. Dolphin flipper & cat arm

5. Human & monkey tailbones

6. Human arm & bat wing

​1. Bat & Butterfly wing

2. Bird & insect wing

3. Dolphin & penguin flippers

4. Fish fins & whale flippers

5. Penguin & seal streamlined shapes

6. Shark & dolphin fins

Multiple Choice

Which of the following pieces of evolution evidence deals with comparing similar structures in various species?

• fossil record
• comparing embryology
• comparing biochemistry
• comparing anatomy

Multiple Choice

Which word is defined as the same structure in different species indicating a common ancestor?

• homologous structures
• vestigial structures
• analogous structures
• DNA

Multiple Choice

The forelimbs of penguin, alligator, bat, human are which of the following?

• homologous structures
• vestigial structures

Multiple Choice

Which of the following are HOMOLOGOUS structures?

• bee wings and bird wings

• legs on a beetle and legs on a cat

• whale flipper and bat wing

• human eyebrows and ant antenna

Multiple Choice

Which images illustrate ANALOGOUS structures?

• 1, 2

• 1, 3

• 2, 3

• 1, 2, 3

Multiple Choice

These limbs provide evidence of common ancestry because they....

• have the same basic structure

• Perform the same function

• Are the same size

• Are parts of mammals

Multiple Choice

Which wings illustrate HOMOLOGOUS structures?

• bat & butterfly

• bat & bird

• butterfly & bird

• bat, butterfly, & bird