3. One way that scientists learn about ancient plants and animals is to compare fossils to similar present-day plants and animals. A fossil of a mammoth tooth was discovered and compared with fossil of an elephant tooth. They were very similar. Elephants eat only plants. What did mammoths most likely eat?

• Both plants and animals

• Only plants

• Only animals

• Either plants or animals depending on the time of year

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Dogs with long legs usually produce puppies with long legs.

• True

• False

Tags

NGSS.MS-LS1-5

Some differences in animal traits are caused by the environment.

• True

• False

Tags

NGSS.MS-LS1-5

Some differences in animal traits are inherited from the animal’s parents.

• True

• False

Tags

NGSS.MS-LS3-2

NGSS.MS-LS4-4

Humans cannot change an environment.

• True

• False

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

The two mice shown have some similar inherited traits. Which trait is not inherited?

• Whisker length

• Eye size

• Fur color

• Extra weight

There have been several Ice Ages on Earth. What evidence is there that there were animals and plants alive during the last Ice Age?

• There are photographs of them.

• The same species of animals and plants are still alive today.

• Fossils of animals and plants have been found in old rock layers.

• There were no animals or plants alive during the last Ice Age.

Tags

NGSS.MS-LS4-1

At the end of the last Ice Age, the Earth got warmer, the snow melted, and the oceans got higher. Many animals became extinct. Select True for the statement(s) below that you agree are a reason why animals became extinct at the end of the Ice Age.

• They ran out of food.

• They caught diseases.

• They were hunted by humans.

• They could not swim.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

You can find fossils of fish in places that are now far away from the sea.

• True

• False

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

Species going extinct is something that only happened in the past and cannot happen to animals today.

• True

• False

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4