Imagine a population of frogs that live in the forest. The frogs have a green coloring on top that helps them blend into the forest so they are not noticed by predators. Imagine that half of this population stayed in the forest and the other half of the population moved to the hills above the forest, which are drier, with some brown grass and brown soil. Which population of frogs is likely to have more changes after many generations?

Descendant Species 1: The frogs in the brown hills.

Descendant Species 2: The frogs in the green forest.

What is an example of a shared body structure?

the distal bones in a whale and the distal bones in a wolf

the distal bones in a whale and the pelvis in a whale

the distal bones in a whale and the pelvis in a wolf

the pelvis in a wolf and the distal bones in a wolf

What is a descendant population?

the process by which one population evolves into two or more different species

a group of the same type of organism living in the same area

the process by which one population evolves into two or more different species

a group of the same type of organism living in the same area

Both of these animals share a common trait, that they produce milk for their babies. What best explains why both have structures that create milk?

The whale and the human both share the same ancestor population that had milk producing structures. They inherited this structure from the ancestor population.

The whale and the human are different species, so they must not share an ancestor population. They inherited their milk creating structure from separate ancestor populations.

It is impossible to say. Fossils are very old; therefore, we cannot make observations of the common ancestors, and we cannot explain its body structures.

All species have their own specific body structures, so it is a coincidence that this human and whale each happen to have the ability to produce milk.

This human and this bat both have hand bones in their front limbs. However, their f bones are very different. The red bathas long finger bones that help it to fly. The human has short fingerr bones that help grab things. What most likely explains why both have front limbs with a hand bones and why the bones are different?

both inherited the bones from a shared ancestor population, but this population separated into different environments. In each environment, different types of handr bone evolved, which helped the populations survive.

different species, so they do not share an ancestor population. These species had separate ancestor populations, and each evolved hand bones that help it survive in its environment.

It is impossible to explain the structures of different species. The way that structures change over time is very complex, and no one has ever observed these changes occurring.

Define Adaptive Trait

a trait that allows individuals to survive in a specific envionment

A trait that allows something to adapt to a lot of different situations

a trait that changes as an individual grows up

Why is Environment important to evolution?

It decides which traits can survive and make babies

It is where animals choose to live

It makes mutations happen more often

What is a paleontologist?

a scientist who studies fossils to understand Earth's history

an individual that follows a paleo diet

a person who lived in the distant past

an organism that was once alive, but is now extinct

What does this diagram show?

All three species share a common ancestor, but the Sumatran tiger and Norway rat are more closely related to each other than they are to the African elephant.

All three species share a common ancestor, but the African elephant and Sumatran tiger are more closely related to each other than they are to the Norway rat.

The Sumatran tiger, African elephant, and Norway rat are not related and come from separate lines of evolutionary history.

All three species share a common ancestor and are equally related to each other.

Shared Structures always come from

two different species in a similar environment

species structures are entirely unique.

What does it mean to inherit?

To receive things from a parent

To Get a trait from the environment

Why do only grizzly bears and sea otters have canine teeth?

Because they lived in an environment where canine teeth were really important

They must have mated with canines to earn canine teeth

It could be that they grow them as they eat more meat

Rabbits would have them too, but they just lost them after splitting from the common ancestor

Is the new fossil more closely related to the Hippopotamus or the Green Iguana?

The Hippopotamus, because they both have three bones inside the ear

The Hippopotamus, because they bother have the scapula in the shoulder

The Green Iguana, because they both have the scapula bone in the shoulder

The Green Iguana, because they both have five toes on the back limb

Which of these animals are the most closely related?

The Grizzly Bear and the Sea Otter, because they both share a backbone and canine teeth

The Desert Cottontail and The Grizzly Bear, because they are both mammals and give milk to their babies

The Sea Otter and the Desert Cottontail, because they are both much smaller than the bear

All three animals are equally related

Which of these animals are more closely related?

The flamingo and the turtle, because they both have a tibia bone and lay eggs

The turtle and the Siamang because they both give live birth

The Flamingo and the Siamang, because they fur and feathers are more similar that feathers and scales

All three animals are equally related

Evolutionary HIstory

Quiz

•

Science

•

7th - 8th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-LS4-2, MS-LS4-4, MS-LS1-5

+8

Standards-aligned

Beatriz Lopez

Used 62+ times

FREE Resource

36 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which species (H, I, or K) is the closest relative to Species J?

Species H

Species I

Species K

Neither

Tags

NGSS.MS-LS4-2

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

a body structure in two or more species that features the same parts

shared structure

speciation

species

ancestor population

Tags

NGSS.MS-LS4-2

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The mystery fossil

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

a more recent species that evolved from an ancestor population

common ancestor population

paleontologist

species

descendant species

Tags

NGSS.MS-LS4-2

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The body structures for a population of chimpanzees were stable for a long time. Then, their body structures changed, making the chimpanzees stronger. Why did this happen?

Organisms naturally become stronger over time.

It is impossible to say without more information.

The chimpanzee population wanted to be stronger.

Their environment must have changed.

Tags

NGSS.MS-LS1-5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Do you think the two species have a common ancestor?

NO

YES

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

an older population from which two or more newer species descended

descendant species

paleontologist

common ancestor population

shared structure

Tags

NGSS.MS-LS4-2

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Evolutionary HIstory

36 questions

Which species (H, I, or K) is the closest relative to Species J?

a body structure in two or more species that features the same parts

The mystery fossil

a more recent species that evolved from an ancestor population

The body structures for a population of chimpanzees were stable for a long time. Then, their body structures changed, making the chimpanzees stronger. Why did this happen?

Do you think the two species have a common ancestor?

an older population from which two or more newer species descended

Two students were challenged with taking imaginary species and placing them on an evolutionary tree. Their models are shown below. Inspect the models and then answer the questions. Which model do you think is correct?

the process by which one population evolves into two or more different species

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

Two students were challenged with taking imaginary species and placing them on an evolutionary tree. Their models are shown below. Inspect the models and then answer the questions.

Which model do you think is correct?