Unit 3.1

Question 1

What is a fundamental niche?

Answer 1

the possible area a species can occupy

Question 2

If two population niches are overlapping each other, what will happen?

Answer 2

the two populations could evolve to not overlap, or one population could die out to the other

Question 3

What principle states that “no two similar species can occupy the same niche at the same time”?

Answer 3

Gause’s Competitive Exclusion Principle

Question 4

What type of interspecific interaction allows for both species to benefit?

Answer 4

mutualism

Question 5

Symbiosis is…

Answer 5

two or more species the share a close physical interaction.

Question 5

Give an example of a commensalism interspecific interaction.

Answer 5

Barnacles on a whale filtering food from water. The barnacles do not affect the whale.

Question 6

Facultative means…

Answer 6

species that receive benefits from each other but can survive without the other.

Question 7

What is community ecology?

Answer 7

the study of interactions between all populations in an environment

Question 8

What are some ways similar species can co-exist in the same area?

Answer 8

eating different plants, going out at different times

Question 9

Lions feed on other wildlife in their area. This is an example of…

Answer 9

predation (lions positively affected, other wildlife negatively affected)