Evolution is called a theory because

scientific theories are supported by a large amount of evidence

there's not enough evidence yet

Which statement best explains adaptations in context of the Theory of Evolution.

adaptations are critical to the survival of a species by providing ways to adjust

adaptations allow a single surviving organism to choose its traits and then reproduce

adaptations are when an organism changes is environment to make it easier to live

adaptations allow organisms to learn how to survive in any environment

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?

The extinct dinosaur and modern bird share a common ancestor

This is purely by chance and isn't significant

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

When scientists discovered seafloor spreading they were able to explain how the plates move around the Earth's surface. Which statement below explains why this is an accepted theory?

It is a theory, because it explains why there is the formation of earthquakes and mountains in certain areas on Earth's surface,

It is a theory, because it is a statement about the relationship between the seafloor and the continents.

It is a theory, because several geologists have been able to predict that our continents will move back together in 100 years.

It is a theory, because it describes the exact movement and rate which the plates move around the earth.

In 1861 paleontologists announced that they had found a fossil, now known as, Archaeopteryx. Archaeopteryx lived approximately 150 million years ago. Most experts believe that the fossil belongs to a single species. Archaeopteryx seems to have more in common with other small Mesozoic dinosaurs than with modern birds due their small size, broad wings, and inferred ability to fly or glide. Archaeopteryx shared the following features with the two different types of dinosaurs: -jaws with sharp teeth -three fingers with claws -a long bony tail -hyper extensible second toes ("killing claw") -feathers (which also suggest warm-bloodedness) and various features of the skeleton How can the Archaeopteryx fossils be used to support the theory of evolution?

They show how organisms today share characteristics with fossilized species.

They can demonstrate that animals from long ago are still alive today.

They give evidence to support the idea that organisms inherit the best traits from their parents.

They indicate that evolution is a theory because scientists do not completely understand the fossil record.

Which of the following statements best explains why genetic variation is important to the survival of a population?

Genetic variation increases the likelihood of an allele being present that is best suited for the environment.

Genetic variation decreases gene flow in the population.

Genetic variation decrease the likelihood of genetic mutation.

Genetic variation increases the size of animals so that more offspring will be produced.

A type of freshwater fish is found in caves and other underground habitats across Mexico and the southern part of the United States. Both the surface and cave fish belong to the same species, but unlike the cave fish, the surface fish has eyes and is described as having a shiny silvery color. Which of the following would best explain why the cavefish population is able to survive in caves without eyes?

Cave fish population has survived in caves without eyes because it is an adaptation to the environment.

A cave fish produced offspring after having lost its eyes in an injury and changed the population overtime.

The surface was too bright and predators were catching them, so they adapted to be transparent in color.

Cave fish were too far away from sunlight, causing problems in their development and changing their appearance.

Over a long period of time the food supply for several birds on an isolated island has changed. The original supply of insects, small tender seeds, and vegetation has shrunk while the supply of tough, large, hard seeds has remained unchanged. Over time the populations of different species of birds of the island changed with the changing food source. Which statement below describes the species that was most likely successful after the change in their environment?

A species with high genetic variation.

A species that has not evolved before.

In the European large banded snail, shell color is genetic. Scientists who study these snails found that snails with a lighter colored shell have a lower body temperature than those with a darker color. Currently, the habitat of the large banded snail is warming due to climate change, what statement explains how the wild large banded snail population will most likely respond to climate change?

Their shells will get lighter, because their environment will be hotter.

They will evolve into a new species without a protective shell.

Their shells will get darker so they can absorb more energy from the sun.

They will go extinct as they are unable to adapt to their changing environment.

Evidence of Evolution Review

Authored by Marla Sarraga

Science

7th Grade

NGSS covered

Used 101+ times

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21 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Predict which moth would increase in population

light

dark

Tags

NGSS.MS-LS4-4

NGSS.MS-LS2-4

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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

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

Fossils show that some species have gone extinct

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

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

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-1

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Scientists compare organisms' DNA to support the theory that all species share a common _________________

separation

ancestor

population

environment

Tags

NGSS.MS-LS4-2

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

The diagram illustrates an embryonic stage of two organisms.

Which of the following can be determined by observing the embryos shown in the diagram

The organisms share a common ancestry.

The organisms belong to the same genus.

The organisms are native to the same geographic areas.

The organisms will grow into anatomically similar adults.

Tags

NGSS.MS-LS4-3

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The bones in the figure above are-

Evidence of a common ancestor

Evidence that animals can walk

Evidence that fossils are old

Evidence of nothing

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An organism that no longer exists on Earth is

decayed

evolved

extinct

preserved

Tags

NGSS.MS-LS4-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The term that can be applied to any living thing is

organism

animal

cell

plant

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Evidence of Evolution Review

Predict which moth would increase in population

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

Scientists compare organisms' DNA to support the theory that all species share a common _________________

The diagram illustrates an embryonic stage of two organisms.Which of the following can be determined by observing the embryos shown in the diagram

The bones in the figure above are-

An organism that no longer exists on Earth is

The term that can be applied to any living thing is

Evolution is called a theory because

The same species lives in the same area and have different appearances. What term can be used to describe this?

Which statement best explains adaptations in context of the Theory of Evolution.

Access all questions and much more by creating a free account

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The diagram illustrates an embryonic stage of two organisms.

Which of the following can be determined by observing the embryos shown in the diagram