What type of succession occurs on abandoned agricultural fields?
secondary succession
100
Which of the following is an example of parasitism?
A) a lichen
B) a clownfish living among the tentacles of a sea anemone
C) tapeworm living in the gut of its host
D) bees feeding on nectar from a flower
C) tapeworm living in the gut of its host
100
Algae->zooplankton->small fish-> large fish->birds. Mercury is passed through this food chain. Which organism is the first to absorb pollutants?
Algae
100
Define carrying capacity
The maximum number of organisms that an ecosystem can support.
100
Name two ways carbon goes back into the atmosphere.
cellular respiration, decomposition, or burning fossil fuels
200
What type of disturbance would cause primary succession?
volcanic eruption or receding glacier
200
Define predation.
One organisms hunts, kills, and eats another organism.
200
Algae->zooplankton->small fish-> large fish->birds. Mercury is passed through this food chain. Which organisms would be better to eat a small fish or large fish? Explain your answer.
Small fish because they don't have as much mercury in their bodies since they are lower on the food chain.
200
Why can’t organisms occupy the same niche?
There will be too much competition
300
Provide one reason why lichens are valuable pioneer species.
They change nitrogen into usable forms or create soil.
300
What is the difference between a niche and a habitat?
A habitat is where an organism lives and a niche is an organism's habitat and how it lives in the environment.
300
Why are producers the first to absorb the pollutant?
b/c they are the first in the food chain
300
The movement of molecules from a low concentration to a high concentration using energy is called________.
active transport
400
Name a natural disturbance that would cause secondary succession
Answers may vary
400
Provide an example of two organisms who display mutualism. Explain how their relationship shows mutualism.
Answers may vary.
400
What happens to falcons or large birds at the end of the food chain if DDT is released into the water?
Eggs thin and break during incubation causing populations to drop.
400
Which organelle makes proteins?
ribosome
500
What is a difference between primary succession and secondary succession?
Primary succession is slower than secondary. Primary occurs when there is no soil left unlike secondary.
500
Provide an example of two organisms who display commensalism. Explain how their relationship shows commensalism.
Answers may vary
500
Mercury can be released into the environment and affect many fish. Why are pregnant women and nursing mothers told not to eat fish?
Mercury can be passed to the baby and cause damage to the brain