4.1

Question 1

What is an ecosystem?

Answer 1

All of the organisms in a community plus the abiotic factors

Question 2

What is productivity?

Answer 2

the rate at which energy is added to the bodies of a group of organisms (such as primary producers) in the form of biomass

Question 3

What is efficiency?

Answer 3

the efficiency with which energy is transferred from one trophic level to the next

Question 4

What are the inputs in photosynthesis?

Answer 4

Carbon dioxide, light, and water

Question 5

What are the outputs in photosynthesis?

Answer 5

Glucose and oxygen

Question 6

What are the inputs in respiration?

Answer 6

Glucose and oxygen

Question 7

What are the outputs in respiration?

Answer 7

Carbon dioxide, light, and water

Question 8

What organisms perform respiration and photosynthesis?

Answer 8

Plants and mainly producers

Question 9

What is shown in a pyramid of energy vs. a pyramid of numbers vs. a pyramid of biomass

Answer 9

Pyramid of energy will always be upright because energy is always lost from one tropic level to the next. Pyramid of numbers shows amount of organisms at each trophic level. Pyramid of biomass shows total organic matter at each trophic level.

Question 10

Why it is considered more efficient to eat at a lower trophic level vs. a higher trophic level

Answer 10

There is more energy available at a lower trophic level.

Question 11

How does solar energy relate to productivity?

Answer 11

When there is more sunlight productivity is higher