Vocab

Question 1

tolerance

Answer 1

the ability to survive and reproduce under a range of environmental circumstances

Question 2

habitat

Answer 2

the general place where an organism lives

Question 3

niche

Answer 3

what an organism does and how it interacts with biotic and abiotic factors in the environment

Question 4

resource

Answer 4

any necessity of life: water, nutrients, light, food & space

Question 5

competitive exclusion

Answer 5

no two species can occupy exactly the same niche in exactly the same habitat, at exactly the same time

Question 6

predation

Answer 6

an interaction in which one animal (the predator) captures and feeds on another animal (the prey)

Question 7

herbivory

Answer 7

an interaction in which one animal (the herbivore) feeds on producers (such as plants)

Question 8

keystone species

Answer 8

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

Question 9

symbiosis

Answer 9

any relationship in which two species live closely together

Question 10

mutualism

Answer 10

a relationship between species in which both benefit

Question 11

parasitism

Answer 11

a relationship in which one organism lives inside another organism and harms it (one is helped, one is harmed)

Question 12

commensalism

Answer 12

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