Ecosystems
Which of the following is an example of a terrestrial ecosystem?
A. Coral Reef
B. Wetland
C. Desert
D. Estuary
C. Desert
A cactus storing water in its stem is an example of
A. pollution
B. adaptation
C. erosion
D. recycling
B. adaptation
A. Plastic bags
B. Aluminum cans
C. Banana peel
D. Styrofoam
C. Banana Peel
The water cycle includes evaporation, condensation, and
A. erosion
B. precipitation
C. pollution
D. recycling
B. precipitation
Which organism is most likely found in an aquatic ecosystem?
A. Camel
B. Shark
C. Cactus
D. Hawk
B. Shark
A population is defined as
A. all ecosystems
B. different species living together
C. one species living in one area
D. only predators in an area
C. one species living in one area
Which material is most commonly recycled?
A. Food waste
B. Glass bottles
C. Mud
D. Leaves
B. Glass bottles
Nitrogen is important to living things because it is used to make
A. rocks
B. proteins
C. clouds
D. sand
B. proteins
In a food pyramid, which level contains the most energy?
A. Top predators
B. Secondary consumers
C. Producers
D. Decomposers
C. Producers
Which is an example of air pollution?
A. Oil spill
B. Car exhaust
C. Trash in ocean
D. Fertilizer runoff
B. Car exhaust
A food chain shows
A. all the organisms in an area
B. one path of energy flow
C. recycling nutrients
D. Only producers
B. one path of energy flow
A community includes
A. only plants
B. only species
C. all living organisms in an area
D. only consumers
C. all living organisms in an area
Recycling helps ecosystems by
A. increasing pollution
B. conserving resources
C. stopping the water cycle
D. preventing erosion
B. conserving resources
Plants remove carbon dioxide from the air during
A. respiration
B. decomposition
C. photosynthesis
D. erosion
C. photosynthesis
A. shows one feeding relationship
B. includes only plants
C. shows many interconnected feeding relationships
D. excludes decomposers
C. shows many interconnected feeding relationships
An organism's niche describes
A. its color
B. its job and role in the ecosystem
C. its size
D. its location on Earth
B. its job and role in the ecosystem
Fertilizer entering rivers and lakes most directly causes
A. increased oxygen level
B. algae blooms
C. stronger currents
D. colder water
Which process returns carbon dioxide to the atmosphere?
A. Photosynthesi
B. Respiration
C. Plant growth
D. Recycling
B. Respiration