Search Header Logo
Evidence for Evolution

Evidence for Evolution

Assessment

Presentation

Biology

7th Grade

Medium

NGSS
HS-LS4-1, MS-LS4-2, HS-ETS1-1

+1

Standards-aligned

Created by

Ashley Evans

Used 2K+ times

FREE Resource

8 Slides • 5 Questions

1

Evidence for Evolution and Evolutionary Relationships

Slide image

2

Evidence

  • Fossils

  • Homologous Structures

  • Analogous Structures

  • Vestigial Structures

  • Embryology

3

Homologous Structures

A body part found in two different ancestors that provides evidence of common ancestor


Can have different Functions

Slide image

4

Multiple Choice

Which would be an example of a homologous structure?

1

a bird wing and a bat wing

2

a cat arm and a whale fin

3

a dolphin fin and whale fin

4

a bird wing and a butterfly wing

5

Analogous Structures

A structure that is found in two species that has similar function but has evolved differently.

Slide image

6

Multiple Choice

Which is an example of a analogous structure?

1

a bat wing and a bird wing

2

a cat arm and a human arm

3

a human arm and a whale fin

7

Vestigial Structures

Structures that can no longer be used by an organism


Fully functioning in an ancestor

Slide image

8

Multiple Select

Which are examples of vestigial structures? Select all that apply!

1

human appendix

2

whale pelvis

3

tail bone

9

Embryology

Embryos of different organisms look different.

This shows they have a common ancestor.

Slide image

10

Shared Characteristics

Characteristics that were shared in the common ancestor and have remained unchanged.


Characteristics that have been modified from the common ancestor

Slide image

11

Cladograms

Branching or tree diagram that shows an evolutionary relationship


The farther up they branch off, the more closely related they are.

Slide image

12

Multiple Choice

Question image

Who is the most closely related?

1

fist and bird

2

bird and lizard

3

rat and bird

13

Open Ended

What is one thing that you learned today?

Evidence for Evolution and Evolutionary Relationships

Slide image

Show answer

Auto Play

Slide 1 / 13

SLIDE