Comparative Anatomy Review

Multiple Choice

The hardened remains of a living thing that died long ago.

• fossil

• extinct

• endangered

• minerals

Multiple Choice

If a scientist found a fish fossil in the desert, what can they infer?

• An animal ate the fish.

• The water covered the area long ago.

• Today's fish looks the same

• The fish is endangered.

Multiple Choice

An organism is ______________ if it no longer exits and will never live again on Earth.

• rare

• extinct

• plentiful

• missing

​The OLDEST rock
layers are at the bottom

Multiple Choice

The millions of fossils that scientists have collected are called

• The Geologic Time Scale
• The Origin of Species
• The Fossil Record
• A really neat fossil collection

Multiple Choice

Which of the following can be learned by using the fossil record?

• When organisms changed or evolved

• when organisms appeared on Earth

• when organisms became extinct

• All the above

Multiple Choice

Which layer contains the oldest fossil?

• Layer 1

• Layer 2

• Layer 3

• Layer 4

Multiple Choice

Which layer contains the youngest fossil?

• layer 1

• layer 2

• layer 3

• layer 4

Multiple Choice

Structures that are inherited from a common ancestor are homologous.

• True
• False

Multiple Choice

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

Multiple Choice

Some organisms that share a common ancestor have features that have different functions, but similar structures.  These are known as

• vestigial structures
• analogous structures
• homologous structures
• fossil structures

Multiple Choice

Shark fins and dolphin fins are examples of analogous structures.

• True
• False

Multiple Choice

Bird wings and butterfly wings are an example of

• Homologous structure
• Analogous structure
• Mimicry
• Camoflague

Multiple Select

Which of the following are vestigial structures humans have?
Select all that apply.

• Appendix

• Tailbone

• Forearm bones

• Goosebumps

Multiple Choice

The gradual change in living things over time is..

• transition

• evolution

• age

• revolution

Let's Review!

Multiple Choice

Which of the following is an example of a vestigial structure?

• the wings of a red-tailed hawk
• the hind limbs of a house cat
• the fins of sharks
• the tailbone of a human

Multiple Choice

The similarities of the bones in the diagram provide evidence that---

• The organisms shown lived in the same natural envionrment
• The organisms shown may have developed from a common ancestor
• The organisms shown have the same genetic diseases
• All vertebrate species have identical forelimbs

Multiple Choice

These wings are examples of what type of structures?

• Homologous
• Vesitigial
• Analogous

Multiple Choice

The order of rock ________ help paleontologists tell how old a fossil is relative to another.

• strata
• molds
• types
• casts

Multiple Choice

A fossil is ____________.

• evidence of past life
• part of the fossil record
• found in sedimentary rock
• all of the above

Multiple Choice

As time goes on, specimens in the fossil record become more _________.

• confusing
• common
• complex
• simple

Multiple Choice

What is this an example of?

• vestigial structures
• embryology
• homologous structures
• fossil record