Which terms defines animals that obtain food by hunting other animals?
A. Predator
B. Prey
C. Producers
D. Scavengers
A. Predator
100
What does a food chain always start with?
a producer
100
Animals and humans breathe out this gas
Carbon Dioxide
100
Which level of the energy pyramids has the least amount of energy?
A. Level 1 (Bottom)
B. Level 2 (second from the bottom)
C. Level 3 (third from the bottom)
D. Level 4 (top level)
D. Level 4
100
What is the function of mushrooms in a food web?
Decomposer
200
A model that shows how energy passes from organism to organism is called
a food chain
200
What does the arrow in a food chain and web show the reader?
Where the energy is being transferred.
200
Plants take in carbon dioxide during this process
photosynthesis
200
Which consumer will receive the most amount of energy in the food chain?
A. Tertiary consumers
B. Primary consumers
C. Quaternary consumers
D. Secondary consumers
B. Primary consumers
300
What shows how the amount of energy left for consumers changes as the energy moves through a food chain or web?
Energy pyramid
300
Create an accurate food chain using the following organisms: grasshopper, owl, grass, bird
grass -> grasshopper -> bird -> owl
300
Plants need what 3 things to go through the process of photosynthesis
water, sunlight, and carbon dioxide
300
What two things decrease as an energy pyramid goes up?
Population and energy
300
What is something that a living thing needs to stay alive.
Examples are food, water, living space, and sunlight.
a resource
400
What are prey?
Animals that are hunted
400
What three things can happen when a population dies out due to disease?
Populations can increase, decrease, or move away.
400
Other than humans and animals, what else produces carbon dioxide?
burning fossil fuels, decaying animals, waste from animals
400
Where would these organisms belong in an energy pyramid?
Owl, cricket, mouse, grass
List 2 ways animals depend on plants (other than for food).
For shelter and oxygen
500
What is competition?
The demand for a resource by two or more organisms
500
The eagles were removed from a grassland ecosystem. What effect will this most likely have on the ecosystem?
A. Decrease in population of other carnivores
B. An increase in population of mice
C. A decrease in the quality of the soil
D. A decrease in mice population
B. An increase in population of mice
500
How would a forest fire affect an area?
Less oxygen and higher levels of carbon dioxide
500
Organisms that are found in the secondary consumers level of the energy pyramid are what type of consumers?
Carnivores and/or omnivores
500
List 2 ways plants depend on animals.
for reproducing, carbon dioxide, and nutrients in the soil