Energy Flow In An Ecosystem

Question 0

Fill in the blank:

Species are assigned to trophic levels on a basis of ____________.

Answer 0

Nutrition

Question 1

What does every ecosystem have? (TS)

Answer 1

Trophies structure

Question 2

What type of organism occupies the first level?
Where does it usually get it’s energy from?
Does it directly or indirectly support all levels?

Answer 2

Producer
The sun
Yes

Question 3

What sets the limit for the energy budget of an ecosystem?

Answer 3

Photosynthetic productivity.

Question 4

What order consumer is found on the 2nd trophic level?

Answer 4

First order.

Question 5

What order consumer is found on the 5th trophic level?

Answer 5

Fourth order.

Question 6

What is the amount of energy available to each trophic level?

Answer 6

The amount of energy entering that trophic level minus the total losses to that level.

Question 7

What percentage of energy is generally available to the next trophic level?

Answer 7

10%

Question 8

Describe 2 situations where energy can be lost in a food chain.

Answer 8

Energy is lost as heat from each trophic level via respiration
Dead organisms at each level are decomposed.

Question 9

Fill in the blank:

Energy, unlike matter, cannot be ________.

Answer 9

Recycled.

Question 10

What outside source do ecosystems receive a constant input of new energy from?

Answer 10

The sun, in most cases.