CH9 Interaction of Living Things Vocabulary

Question 1

abiotic factor

Answer 1

nonliving part of an ecosystem

Question 2

atmosphere

Answer 2

mix of gases surrounding a planet

Question 3

biome

Answer 3

geographic area that contains ecosystem with similar biotic and abiotic features

Question 4

biotic factor

Answer 4

living or once-living thing in an ecosystem

Question 5

community

Answer 5

all the populations living in an ecosystem at the same time

Question 6

ecosystem

Answer 6

all the living and nonliving things in one place

Question 7

population

Answer 7

all the members of one species living in an area

Question 8

succession

Answer 8

gradual change from one community to another community in an area

Question 9

biotic potential

Answer 9

growth of a population, in perfect conditions with no limiting factors

Question 10

carrying capacity

Answer 10

largest number of individuals of one species that an ecosystem can support over time

Question 11

habitat

Answer 11

physical place where a population or organism lives

Question 12

limiting factor

Answer 12

limits the growth of a population

Question 13

niche

Answer 13

ways that an organism survives, obtains food and shelter, and avoids danger

Question 14

symbiotic relationship

Answer 14

two different species live together in a close relationship over a long period of time

Question 15

consumer

Answer 15

cannot make their own food and get energy by eating other organisms

Question 16

energy pyramid

Answer 16

model showing the amount of energy available at each step of a food chain

Question 17

food chain

Answer 17

model showing how food energy flows in an ecosystem through feeding relationships

Question 18

food web

Answer 18

model showing several connected food chains

Question 19

producer

Answer 19

changes the energy available in its environment into food energy

Question 20

source

Answer 20

point of origin

Question 21

transform

Answer 21

to change in composition or structure