Unit 01 Quiz Practice

What is a heterotroph?

• An organism who makes its own food

• An organism who consumes other organisms

• An organism who does not need food

• An organism who both consumes and produces food.

Which of the following organisms is a carnivore?

• wolf

• deer

• rabbit

• squirrel

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.
• It shows how sunlight flows within an ecosystem.
• They show what direction the energy is flowing between organisms. 
• They represent how water is transferred within a habitat.

In this food chain, what will happen if the frogs become extinct?

• The snakes will increase.
• The grasshoppers will decrease.
• The eagles will remain the same.
• The grasshoppers will increase.

What percentage of energy is passed on to each tropic level?

• 10%
• 50%
• 90%
• 100%

A collection of organisms that belong to different populations but all live in the same area and interact with one another.

• Population
• Ecosystem
• Community
• Ecosphere

Which choice shows the correct order of the levels of environmental organization?

• organism, population, community, ecosystem, biosphere

• organism, population, ecosystem, biosphere, community

• organism, community, population, ecosystem, biosphere

• population, ecosystem, biosphere, organism, community

cactus, snake, coyote, sagebrush, and hare are all examples of _______ within an ecosystem.

• consumers

• abiotic factors

• biotic factors

• producers

All the individuals of one species in a given area is called a ______________. A herd of zebras would be an example.

• Population

• Community

• Non-living

• Organism

An _____________ is an interwoven system of biotic and abiotic factors.

• Species

• Ecosystem

• Microscope

• Zoo