The similarities of bone structure in the diagram provide evidence of what?

The organisms evolved from a common ancestor.

The organisms probably use there forelimbs for the same thing.

The organisms have the same DNA.

All vertebrate species have identical forelimbs.

How do fossils provide evidence that evolution has happened on Earth?

Fossils show how life forms present today are different than those from the past

Fossils show how the sizes of certain animals has changed drastically over millions of years

Fossils show that some species have gone extinct

Different sedimentary rock layers provide evidence for how the environment has changed over time

Observe the two fish in the image. The cave fish and minnow are genetically related to each other and are similar in many ways. The cave fish lives very deep in the ocean where there is no light. It has only the remnants of eyes and is blind. Minnows live in shallow waters where the water has light. Their eye sight is important for their survival. Which statement below best describes these two fish?

The DNA of the cave fish has changed over time to differ from the minnow. Since there is no light where the cave fish lives, it was not necessary to have working eyes. Over time, mutations occurred which proved to improve the survival of the cave fish, which is why they are now blind and have only physical remnants of eyes.

The DNA has not mutated over time and despite all of the evidence that suggests these two are genetically similar, one has eyes and the other does not so they must not be related.

Cave fish must have been attacked by predators, which is why they only have the remnants of eyes.

Evidence for Evolution

Authored by Lisa Thompson

Science

8th Grade

NGSS covered

Used 3+ times

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15 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

All vertebrates have this structure which indicates that they are evolved from a distant same ancestor

A chambered heart

Lungs for breathing air

kidneys to clean the blood

Pharyngeal Pouches

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which kind of a structure is it? A bird's wing and a human forearm

Homologous

Analogous

Vestigial

Pharygeal Pouch

Tags

NGSS.MS-LS4-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which kind of a structure is it? A whale's pelvis

Homologous

Analogous

Vestigial

Pharygeal Pouch

Tags

NGSS.MS-LS4-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which kind of a structure is it? A bat's wing and a butterfly's wing?

Homologous

Analogous

Vestigial

Pharyngeal

Tags

NGSS.MS-LS4-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What kind of a structure is it? A fish's gills and our lungs

Homologous

Analogous

Vestigial

Heterozygous

Tags

NGSS.MS-LS4-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Fossils that are created from the impression of an organism are called

Cast

Mold

Trace

Behavioral

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Organisms that have the most DNA sequences in common

have the same number of legs

Are the least related

are randomly distributed

Are the most related

Tags

NGSS.HS-LS4-1

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Evidence for Evolution

All vertebrates have this structure which indicates that they are evolved from a distant same ancestor

Which kind of a structure is it? A bird's wing and a human forearm

Which kind of a structure is it? A whale's pelvis

Which kind of a structure is it? A bat's wing and a butterfly's wing?

What kind of a structure is it? A fish's gills and our lungs

Fossils that are created from the impression of an organism are called

Organisms that have the most DNA sequences in common

What kind of a structure is it? An Ostrich's wing

What kinds of rocks hold the most fossils?

What type of evidence is shown with the diagram above?

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