Vocabulary

Question 1

Food chain

Answer 1

represents a single pathway through which energy and matter flow

Question 2

trophic level

Answer 2

the levels that species stayed and feed on

Question 3

biotic factors

Answer 3

living things

Question 4

abiotic factors

Answer 4

non-living things

Question 5

niche

Answer 5

the role of a species in its ecosystem

Question 6

scavengers

Answer 6

consumes the soft tissues of dead animals

Question 7

Habitat

Answer 7

the physical environment in which a species live

Question 8

Food webs

Answer 8

the arrow which shows the direction of energy flow

Question 9

Ecology

Answer 9

the study of how living things interact with each other and with their environment

Question 10

Biomass

Answer 10

the total mass of organisms at a trophic level

Question 11

decomposers

Answer 11

break down remains and other wastes, and release simple inorganic molecules back to the environment

Question 12

omnivores

Answer 12

consumes both plants and animals

Question 13

carnivores

Answer 13

consume animals

Question 14

herbivores

Answer 14

consume producers

Question 15

K- strategists

Answer 15

Animals have better conditions for offspring, and babies have a higher chance of living to adulthood

Question 16

R- strategists

Answer 16

Animals have lower chance for offspring, because of unstable environment, leading to many babies, but have lower chance of living to adulthood

Question 17

competitive exclusion

Answer 17

species cannot occupy
identical niches within a community

Question 18

dispersion

Answer 18

the act of spreading things or people over a wide area

Question 19

Ecological succession

Answer 19

the process by which natural communities replace (or “succeed”) one another over time.

Question 20

Secondary succession

Answer 20

when a climax community or intermediate community is impacted by a
disturbance.