test 2

Question 1

Intraspecific competition

Answer 1

competition among individuals of the same species

Question 2

interspecific competition

Answer 2

competition among individuals of different species

Question 3

Resource

Answer 3

anything an organism consumes or uses that causes an increase in the growth rate f a populatino when it becomes more available

Question 4

renewable resources

Answer 4

resources that are constantly regenerated

Question 5

nonrenewable resources

Answer 5

resources that are not regenerated

Question 6

Liebigs law of the minimum

Answer 6

Law stating that a population increases until the supply of the most limiting resource prevents it from increasing further

Question 7

competitiive exclusion principle

Answer 7

the princeple that 2 species cannot coexist indefinitely when they are both limited by the same resource

Question 8

competition coefficients

Answer 8

variables that convert between the number of individuals f one species and the number of individuals of the other species

Question 9

zero population growth isocline

Answer 9

population sizes at which a population experiences zero growth

Question 10

exploitative competition

Answer 10

competition in which individuals consume and drive down the abundance of a resource to a point that other individuals cannot persist

Question 11

interference competition

Answer 11

when competitors do not immediately consume resources but defend them

Question 12

allelopathy

Answer 12

a type of interference that occurs when organisms use chemicals to harm their competitors

Question 13

Spatial structure

Question 14

specialists

Answer 14

a species that interact with one other species or a few closely related species

Question 15

obligate mutualists

Answer 15

two species that provides fitness benefits to each other and require each other to presist

Question 16

Faculative mutualists

Answer 16

two species that provide fitness benefits to each other, but the interaction is not critical to the persistence of either species

Question 17

mycorrhizal fungi

Answer 17

fungi that surround plant roots and help plants obtain water and minerals

Question 18

endomycorrhizal fungi

Answer 18

fungi characterized by hyphal threads that extend far out into the soil and penetrate root cells between the cell wall and the cell membrane

Question 19

arbuscular mycorrhizal fungi

Answer 19

a type of endomycorrhizal fungi that infects a tremendous number of plants including apple trees, peach trees, coffee trees, and grasses

Question 20

Ectomycorrhizal fungi

Answer 20

fungi characterized by hyphae that surround the roots of plants and enter between root cells but rarely enter the cells

Question 21

Endophytic fungi

Answer 21

Fungi that live inside a plants tissues