Ecosystem Structure 2.1

Question 1

Food web

Answer 1

Shows flow of energy interconnected to many organisms (all possible food chains)

Question 2

Trophic level

Answer 2

Feeding level (position of an organisms on a food chain)

Question 3

Producers

Answer 3

Producers, perform photosynthesis, autotrophs, plants

Question 4

Comsumers

Answer 4

Heterotrophs, can’t synthesize their own food

Question 5

Primary consumer

Answer 5

Herbivores (eats plants)

Question 6

Secondary consumers

Answer 6

Omnivores (eats both plants and animals)

Question 7

Tertiary consumers

Answer 7

Carnivores (eats meat)

Question 8

Decomposer

Answer 8

Consumers that release nutrients, bacteria or fungi

Question 9

Detritivores (scavenger)

Answer 9

Feed on dead bodies of other organisms, earthworms or vultures

Question 10

Pyramid

Answer 10

Show differences that exist between tropic levels , 10% energy passes through level, 90% released as heat (respiration)

Question 11

Pyramid of biomass

Answer 11

Dry weight of all organic matter of a given trophic level in a food chain or food web

Question 12

Pyramid of energy

Answer 12

Less chemical energy for higher trophic level

Question 13

Pyramid of numbers

Answer 13

Shows the total number of organisms at each trophic level

Question 14

Bioaccumulation

Answer 14

Concentration of toxins increases in an individual organism’s tissues

Question 15

Biomagnification

Answer 15

Concentration of toxins increases as the trophic level increases

Question 16

Predation

Answer 16

One species killing another and consuming it in the process

Question 17

Food chain

Answer 17

Shows flow of energy from one organism to another