In order to explain how changes to physical components of an ecosystem affect populations, you must use data from observations and investigations. These data are also known as
A. a statement.
B. reasons.
C. evidence.
D. an argument.
C. evidence.
Some types of algae can grow together with fungi. The fungi provide nutrients from decaying matter to the algae, while the energy the algae get from sunlight is shared with the fungi. Based on this information, how would you describe this relationship?
A.The fungus is a parasite, and the algae is the host.
B. The two organisms are in a mutualistic relationship.
C. The algae is the predator, and the fungus is the prey.
D. The two organisms are in competition.
B. The two organisms are in a mutualistic relationship.
A hawk eats a mouse. This kills the mouse, but it also means that the remaining mice will not have to compete as much for food with each other. Based on this information, what is the relationship between the hawk and the mouse?
A. The two organisms are in a parasitic relationship.
B. The two organisms are in a predator-prey relationship.
C. The two organisms are in a mutualistic relationship.
D. The two organisms are in a competitive relationship.