Imagine an ecosystem such as this pond. It is a freshwater pond with perch, bass, ducks, crayfish, frogs, and sometimes a visiting water snake or two. It has algae and water plants. Use this information to answer the following two questions.
(Note: Fir trees are in the image it just won't let me post the image) In the ecosystem described in the image above, all of the following are biotic factors that would affect it except
A. temperature
B. hawks
C. beavers
D. fir trees
In the ecosystem described in the image above, all of the following are abiotic factors that would affect it except
A. temperature
B. rainfall
C. type of soil
D. water snakes
The answer to the first question is D. Fir trees are not part of the pond ecosystem, so they would not affect it.
The answer to the second question is D. Water snakes are biotic factors because they are living organisms in the pond ecosystem. Abiotic factors are non-living physical and chemical factors such as temperature, rainfall, and type of soil.