B4 test terms

Question 1

niche

Answer 1

the role of a species within its ecosystem (biotic interactions and abiotic requirements)

Question 2

autotroph

Answer 2

can make their own carbon compounds (glucose)

Question 3

Photoautotrophs

Answer 3

a type of autotroph that makes their own energy from sunlight

Question 4

chemoautotrophs

Answer 4

a type of autotroph that makes their own energy from oxidizing chemicals

Question 5

Heterotroph

Answer 5

organisms that rely on other organisms to obtain carbon compounds (glucose)

Question 6

Holozoic nutrition

Answer 6

type of heterotrophs that use internal digestion (they ingest their food)

Question 7

consumer

Answer 7

a type of holozoic nutrition (heterotrophic) where organisms eat living/fresh organisms

Question 8

detritovore

Answer 8

a type of holozoic nutrition (heterotrophic) where organisms eat decaying matter

Question 9

saprotrophic nutrition

Answer 9

organisms that use external digestion via the release of enzymes (sometimes called decomposers)

Question 10

obligate aerobes

Answer 10

require O2 to meet their needs

Question 11

facultative aerobes

Answer 11

can successfully survive without O2 but get more energy using O2

Question 12

obligate anaerobes

Answer 12

organisms that are killed by O2

Question 13

limiting factor

Answer 13

any biotic or abiotic factor that determines the distribution of living organisms or that at extremes prevents a species form living in a certain habitat

Question 14

mixotrophic nutrition

Answer 14

organisms that have the ability to absorb nutrients and photosynthesize
Facultative: could survive with photosynthesis alone
obligate: some nutrients needed require consumption

Question 15

range of tolerance

Answer 15

the area between two extremes of an abiotic factor that that species can still successfully survive in