module 4•2 - biodiversity

Question 1

a community of interacting organisms and their physical environment

Answer 1

ecosystem

Question 2

a group of ecosystems that share similar climates and typical organisms

Answer 2

biome

Question 3

where an organism lives

Answer 3

habitat

Question 4

all the organisms of one species in a habitat

Answer 4

population

Question 5

all organisms of one species in a habitat

Answer 5

community

Question 6

an organism’s particular role in an ecosystem or how it makes its living

Answer 6

niche

Question 7

a living feature of an ecosystem

Answer 7

biotic factors

Question 8

a non-living feature of an ecosystem

Answer 8

abiotic factors

Question 9

a stage in a food chain thats occupied by a particular group of organisms

Answer 9

trophic level

Question 10

a series of steps in an ecosystem in which organisms transfer energy

Answer 10

food chain

Question 11

a system of interlocking and interdependent food chains

Answer 11

food web

Question 12

an organism that makes its own food

Answer 12

autotroph

Question 13

an organism that obtains energy from the foods it consumes

Answer 13

heterotroph

Question 14

an organism that feeds on dead organic matter

Answer 14

saprophyte

Question 15

an organism that breaks down dead or undigested organic material

Answer 15

decomposer / detrivore

Question 16

an organism that produces orhanic molecules using sunlight energy

Answer 16

producer

Question 17

a consumer that feeds directly from a producer

Answer 17

primary consumer

Question 18

an organism that eats orimary consumers

Answer 18

secondary consumer

Question 19

a carnivore that eats secondary consumers

Answer 19

tertiary consumer

Question 20

the maximum stable population size of a species that an ecosystem can support

Answer 20

carrying capacity

Question 21

limiting factor that affects all populations in similar ways regardless of population size

Answer 21

debsity independent factors

Question 22

limiting factor that depends on poulation size

Answer 22

density dependent factors

Question 23

the process by which an ecosystem changes over time

Answer 23

succession

Question 24

the largest and most complex community of plants and animals an ecosystem can support

Answer 24

climax community

Question 25

a group of organisms that can be freely interbred to produce fertile offspring

Answer 25

species

Question 26

when a species is unique to a single place

Answer 26

endemism

Question 27

where the species is found

Answer 27

distribution

Question 28

how many of each species are present

Answer 28

abundance

Question 29

how to estimate abundance

Answer 29

• take a representative sample
• multiply up