Topic 6

Question 1

area in which an organism lives including the biotic and abiotic factors that affect it.

Answer 1

habitat

Question 2

ability of an organism to survive and reproduce under circumstances that differ from their optimal conditions

Answer 2

tolerance

Question 3

full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions

Answer 3

niche

Question 4

any necessity of life, such as water, nutrients, light, food, or space

Answer 4

resource

Question 5

principle that states that no two species can occupy the same niche in the same habitat at the same time

Answer 5

competitive exclusion principle

Question 6

relationship in which two species live close together

Answer 6

symbiosis

Question 7

single species that is not usually abundant in a community yet exerts strong control on the structure of a community

Answer 7

keystone species

Question 8

symbiotic relationship in which one organism benefits and the other is neither helped nor harmed

Answer 8

commensalism

Question 9

symbiotic relationship in which both species benefit from the relationship

Answer 9

mutualism

Answer 10

parasitism

Answer 11

ecological succession

Answer 12

primary succession

Answer 13

pioneer species

Answer 14

secondary succession

Answer 15

biodiversity

Answer 16

ecosystem diversity

Answer 17

species diversity

Answer 18

genetic diversity

Answer 19

resilience

Answer 20

ecosystem services