5.10A Science

Each time animals exhale, they are releasing ___________ gas into the air.

• methane
• carbon dioxide
• carbon monoxide
• calcium carbonate

Why does every animal in an ecosystem rely on producers?

• producers start all food chains

• producers break down dead waste

• producers eat consumers

• producers recycle

A prickly pear cactus is shown. The roots of the prickly pear cactus spread out in a wide underground network. How does this type of root system benefit a prickly pear cactus?

• By producing fruit and storing water

• By capturing sunlight and getting rid of waste materials

• By absorbing water and supporting the plant in loose, sandy soil.

• By releasing nutrients into the sandy soil and taking in oxygen

A farmer is reading a nature guide to learn how to make changes to a pond so that it will attract and support wildlife. The guide gives the suggestion listed below. Which suggestions involves interactions between two groups of living organisms

• Suggestion 1

• Suggestion 2

• Suggestion 3

• Suggestion 4

Which organism would be LEAST likely to live in a desert?

• Cactus
• Snake
• Alligator
• Tarantula

When the Northern Hemisphere of Earth is Leaning away from the Sun, What season is the Southern Hemisphere experiencing?

• Summer
• Winter
• Spring
• Fall

The whiskers of a river otter and the antennae of a cockroach are shown here. How do structures such as whiskers and antennae benefit organisms? (5.10A)

• They help the organisms detect their surroundings.

• They help the organisms eat food quickly.

• They help the organisms fight predators.

• None of these

Plants obtain all of the following from soil EXCEPT--

• minerals
• energy
• water
• air

Many animals in an ecosystem depend on other animals for —

• air
• energy
• shelter
• water

Huge areas of the Amazon Rainforest are being cut down. What effect could this have on the carbon-dioxide and oxygen cycle if the removal of so many plants and trees continues?

• Carbon dioxide levels increase
• Oxygen levels increase
• Carbon dioxide levels decrease
• Nitrogen levels decrease