Evolution Comparative Anatomy

The structures shown are_________

• homologous

• heterologous

• analogous

• vestigial

Tags

NGSS.MS-LS4-2

An anatomical feature that no longer seams to have a purpose in the current form of an organism

• Homologous structure

• Analogous structure

• Vestigial structure

• None of the above

Bat wings and butterfly wings are an example of

• Homologous structure

• Analogous structure

• Mimicry

• Camoflague

Tags

NGSS.MS-LS4-2

Humans, birds, whales, and lizards all have similar arm bones. What are these structures called?

• Embryological Structures

• Homologous Structures

• Analogous Structures

• Ancestoral Structures

Tags

NGSS.MS-LS4-2

Structures that are inherited from a common ancestor are homologous.

• True

• False

Answer explanation

Homologous structures are those that are inherited from a common ancestor, making the statement true. Homo= Same so structures are from the same ancestor.

Tags

NGSS.MS-LS4-2

A fossil of an extinct dinosaur is found and the anatomy of the fossil shows similarities to that of a bird. What could this mean?

• This is purely by chance and isn't significant

• The extinct dinosaur and modern bird share a common ancestor

• All dinosaurs evolved into birds and that's why there aren't any dinosaurs alive today

• Dinosaurs choose to fly, and evolved into birds to escape predation and capture food

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

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

Tags

NGSS.MS-LS4-2

The picture shows a/an ___________

• homologous structure

• vestigial structure

Tags

NGSS.MS-LS4-2

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

• homologous structures

• vestigial structures

Tags

NGSS.MS-LS4-2

What is the purpose of examining anatomical features in the study of evolution?

• To find the strongest organism

• To uncover relationships between ancient and current species

• To create new species

• To study animal behavior

Tags

NGSS.MS-LS4-2