Food Chains Chapter Test A

In any food web, which group of organisms can make their own food?

• Producers
• Herbivores
• Carnivores
• Decomposers

An animal that eats only seeds and leaves is an example of which type of organism?

• Carnivore
• Omnivore
• Herbivore
• Decomposer

Which of the following explains why animals are classified as consumers?

• Their cells lack cell walls.
• They are unable to make their own food.
• They cannot make their own food until they are adults.
• They break down dead organisms and return nutrients to the environment.

Which of the following animals completes the food chain?

• Fish
• Bear
• Tiger
• Rabbit

Which of the following organisms is a producer?

• Cat
• Giraffe
• Ladybug
• Oak tree

The graph below shows a deer population in a Mississippi forest over a span of time. What MOST LIKELY happened to other organism populations in this forest between 1970 and 2005?

• The deer population is the only one that changed.
• The number of plants that the deer fed on decreased in number.
• The number of plants that the deer fed on increased in number.
• The number of predators that fed on the deer decreased in number.

Which of the following organisms is MOST LIKELY a decomposer?

• Frog
• Fern
• Coyote
• Mushroom

Why are producers always the first organisms in a food chain?

• They prey on all other organisms.
• They receive energy directly from the Sun.
• They are not consumed by any other organisms.
• They break down dead organisms and return nutrients to the environment.

Where does an omnivore get energy?

• From the Sun
• From plants only
• From animals only
• From both plants and animals

Which of the following shows the correct sequence of a food chain?

• Sun --> Mouse -->Grain--> Hawk
• Sun --> Grain --> Mouse --> Hawk
• Hawk --> Mouse --> Grain --> Sun
• Hawk --> Sun --> Grain --> Mouse