1.7

Question 1

Biomass

Answer 1

The total living organic matter produced in a given area.

Question 2

Biomass refers to what?

Answer 2

All living things

Question 3

What is sunlight converted to/stored in

By what?

Answer 3

Chemical energy and stored in organic compounds (biomass) by producers

Question 4

Biomass is broken down to release what?

Answer 4

Energy through Respiration by consumers

Question 5

Energy leaves the biosphere as what?

Answer 5

Heat

Question 6

What do food chains show?

Answer 6

The flow is matter and energy between all the producers and consumers in a given ecosystem

Question 7

The mass of biomass and amount of everything at each stage in a food chain is ________ what it was at the previous stage

Answer 7

Less than

Question 8

How is the percentage of energy transfer at each stage of the food chain round?

Answer 8

% energy transfer=
Energy transferred
--------------------- 
Total energy taken in 
X 100

Question 9

2 reasons for inefficiency of the energy transfer

Answer 9

• some plant material passes out or the body of a herbivore as farces without being digested
• energy is transferred to the environment in Respiration
• some energy passes to decomposers in dead remains

Question 10

Microorganisms function better where?

Answer 10

In warm, moist conditions with a plentiful supply of oxygen

Question 11

what happens when living things die?

Answer 11

their bodies are broken down by decomposed so releasing the elements they contain

Question 12

what can the minerals from the dead bodies be used for

Answer 12

by plants to grow so that the cycle repeats over again

Question 13

How can ecologists find out what happens to energy and biomass as it passes along the food chain?

Answer 13

by observing the numbers and sizes of the organisms in food chains