12. Nuclear energy is the second most-used nonrenewable source in the U.S. true or false
13. Each link in the chain of consumption is called a:
a. Energy pyramid
b. Tertiary consumer
c. Trophic level
14. ___________ is found on the tops of mountains.
a. Arctic tundra
b. Grassland
c. Alpine tundra
15. ____________ helps keep the economy up and maintains the employment rate.
a. Renewable sources
b. Population
c. Consumption
d. Fossil fuels
16. Bacteria, fungi, and earthworms are examples of:
a. Producers
b. Consumers
d. Decomposers
19. Examples of natural resources are:
a. Cars, homes, and buildings
b. Plants, water, and energy
c. All of the above
21. An organism's habitat is wherever it lives. true or false
24. Each species in the same habitat has exactly the same niche. true or false
13. Each link in the chain of consumption is called a:
a. Energy pyramid
b. Tertiary consumer
c. Trophic level
14. ___________ is found on the tops of mountains.
a. Arctic tundra
b. Grassland
c. Alpine tundra
15. ____________ helps keep the economy up and maintains the employment rate.
a. Renewable sources
b. Population
c. Consumption
d. Fossil fuels
16. Bacteria, fungi, and earthworms are examples of:
a. Producers
b. Consumers
d. Decomposers
19. Examples of natural resources are:
a. Cars, homes, and buildings
b. Plants, water, and energy
c. All of the above
21. An organism's habitat is wherever it lives. true or false
24. Each species in the same habitat has exactly the same niche. true or false