Front

Back

To provide oxygen for the organisms

Front

Back

The number of Frilled Lizards will decrease.

Front

What is an adaptation of a hedgehog?

Options: Breathing in oxygen, having sharp quills, living in a forest ecosystem, their diet

Back

having sharp quills

Front

What effect does Giant Salvinia most likely have on an ecosystem? Options: The Salvinia blocks sunlight that other native plants need, The water supply increases in the area, Other plant growth in the area increases, The amount of rainfall in the area changes.

Back

The Salvinia blocks sunlight that other native plants need.

Front

Back

Both the chicken and the moth start out as an egg.

Front

Back

hawk and snake

Front

A monkey that knows which tree has the most fruit is an example of --

Back

a learned behavior

Front

Which of the following statements about ecosystems is true?

• A decrease in an organism’s population will affect another organism in an ecosystem.
• Plants provide all the energy in an ecosystem.
• Non-living elements in an ecosystem are not important.
• Not all ecosystems need oxygen.

Back

A decrease in an organism’s population will affect another organism in an ecosystem.

Front

What happens in step Y of the tomato plant life cycle? Options: Fruit forms, The plant grows roots, The seed is planted, The seedling emerges.

Back

The seedling emerges.

Front

What were the students most likely investigating? Options: Which bird’s feet have hollow bones? Which birds can hop the farthest? Which model of a bird’s foot moves more water? Why do bird’s have different feet?

Back

Which model of a bird’s foot moves more water?