Evidence for Evolution

A fossil of an extinct dinosaur is found and the anatomy of the fossil is similar to that of modern birds. 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 predators and to capture food

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Two organisms that are closely related would have

• very similar DNA sequences

• identical DNA sequences

• very few DNA sequences

• completely different DNA sequence

Tags

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

• unknown structures

• homologous structures

• fossilized structures

Tags

NGSS.MS-LS4-2

What do the similarities of these structures suggest?

• that these species share a common ancestor

• that these species grow at different rates

• that these species evolved slowly

• that these species lived a long time

Tags

NGSS.MS-LS4-2

An example of an analogous structure includes:

• wing of a butterfly and bird wing
• bird wing and human arm
• rat appendix and human appendix

Tags

NGSS.MS-LS4-2

An example of a homologous structure 

• human arm and bird wing
• rat appendix  and human appendix
• wing of butterfly and bird wing

Tags

NGSS.MS-LS4-2

Embryos of chickens, fish and humans look very similar. They all have folds known as gill pouches in the neck region. What may this suggest?

• they all formed in the ocean 
• they all evolved from a common ancestor
• they are all going extinct

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

Notice the similarities of a shark and dolphin. If these similarities developed by common life experiences and not by common ancestry, which of the following vocabulary words would best describe them?

• Vestigial Organ

• Embryological Similarities

• Homologous Structures

• Analogous Structures

Which of the following places the geologic time eras in order from oldest to most recent?

• Precambrian, Paleozoic, Mesozoic, Cenozoic
• Mesozoic, Cenozoic, Paleozoic, Precambrian
• Cenozoic, Mesozoic, Paleozoic, Precambrian
• Precambrian, Cenozoic, Paleozoic, Mesozoic

Tags

NGSS.MS-ESS1-4

A Variation that makes an organism more suited to its surroundings

• adaptation

• variation

• evolution

• embryology

Tags

NGSS.MS-LS4-4