bio lab quiz 8

Question 1

producers

Answer 1

make up the fundamental trophic level and consist of autotrophs, such as photosynthetic organisms and chemosynthetic organisms (different bacteria)

Question 2

consumers

Answer 2

heterotrophs, organisms that obtain their energy by consuming other organisms (caterpillars)

Question 3

decomposers

Answer 3

final trophic level, the ultimate recyclers, use non living organic matter as a source of energy and return inorganic material to earth when they die

Question 4

food chain

Answer 4

trophic levels can be appreciated in its construction

Question 5

food web

Answer 5

a more complete representation of the relationships in an ecosystem, illustrating the many trophic level interactions in a community of organisms

Question 6

_____ flows though each _________ level

Answer 6

energy; trophic

Question 7

ecological efficiency

Answer 7

the percentage of usable energy transferred through the trophic levels (10% pass to each level)

Question 8

biomass

Answer 8

the total weight of all organisms at a given trophic level

Question 9

herbivores

Answer 9

animals that eat plant materials (rabbits etc)

Question 10

carnivores

Answer 10

consumers that eat flesh (bass, bobcats, dolphins, eagles)

Question 11

omnivores

Answer 11

consume both plant and animal matter (bears, chickens, raccoons, humans)

Question 12

heterotrophs vs. autotrophs

Answer 12

heterotrophs - obtain energy by consuming other organisms
autotrophs - can obtain its energy from carbon etc

Question 13

protists

Answer 13

microscopic, unicellular organisms, such as amoeba as well as gigantic multicellular organisms like kelp