Introduction to Biosphere

Question 1

Sustaining life on earth is dependent upon what?

Answer 1

Ecosystems

Question 2

Biosphere

Answer 2

all living things

Question 3

Ecosystem

Answer 3

total interactions among organisms

Question 4

What percent of all incoming solar radiation reaching surface is used for photosynthesis?

Answer 4

1%

Question 5

Food chain?

Answer 5

Organisms feed upon each other; sequential predation

Question 6

Trophic Level 1

Answer 6

Plants are producers; they make the sun’s energy available to the rest of life on earth

Question 7

autotroph?

Answer 7

an organism that produces its own food

Question 8

Photosynthesis

Answer 8

Using light as energy

Question 9

Trophic Level

Answer 9

all organisms that are the same number of food-chain steps from the primary source of energy

Question 10

Trophic Level 2

Answer 10

Producer plants eaten by herbivores or primary consumers

Question 11

Trophic Level 3

Answer 11

Herbivores eaten by carnivores

Question 12

Trophic Level 4

Answer 12

carnivores eaten by tertiary consumers

Question 13

Trophic Level 5

Answer 13

decomposers complete the chain

Question 14

decomposers

Answer 14

organisms that consumer dead organisms and waste

Question 15

food web

Answer 15

a network of who feeds whom

Question 16

Food pyramid

Answer 16

transfering of energy through an ecosystm