Life and Animals

When are animals most likely to hibernate?

• During spring and summer, when the weather is warm

• During winter, when the weather is cold

• During a month when no rain falls

• During a month with heavy rainfall

If frogs were removed from the pond, what change would most likely happen?

• The number of fish would increase.

• The number of fish would decrease.

• The number of herons would increase.

• The number of trees would decrease.

If the drought continues, which change to the land is most likely to happen?

• Birds and other animals will return to the land.

• Grasses will begin growing in the dry, cracked soil.

• The grasses will be replaced by shrubs, trees, and other tall plants.

• More grasses will die, and the area of dry, cracked soil will increase.

What does the photo show about the effects of a forest fire? A forest fire will cause -

• many of the tall trees to perish, while after the fire, the small plants may thrive in the bright sunlight.

• many of the tall trees to thrive, while after the fire, the small plants may perish in the bright sunlight.

• all the trees and plants to perish and never regrow.

• no damage to the trees and plants around them.

What evidence from the fossil shows that the iguanodon ate plants, not meat?

• The size of the fossil

• The material that makes up the fossil

• The shapes of the spaces inside the fossil

• The shape and arrangement of the fossil teeth

What do the fossil discoveries show about the history of Texas?

• Texas was always a desert

• Texas was underwater when trilobites were alive

• Texas was a forest

• Texas was a mountain

Why do scientists believe Texas was underwater?

• Because of the weather

• Because trilobites lived in seas

• Because of the mountains

• Because of the trees

What is a key feature of trilobites?

• They had wings

• They looked like crabs

• They had fur

• They had leaves

What is the significance of finding trilobite fossils in Texas?

• It shows Texas was a forest

• It shows Texas was underwater

• It shows Texas was a desert

• It shows Texas was a mountain

What do trilobite fossils help scientists understand?

• The weather in Texas

• The history of Texas

• The plants in Texas

• The animals in Texas