Ecosystems

Question 1

A food web

Answer 1

A food web is made up of a number of interconnected food chains.

Question 2

Food chain

Answer 2

A food chain shows the transfer of energy between organisms. The arrows in a food chain show the flow of energy.

Question 3

What is biomass

Answer 3

Biomass is organic material that has stored chemical energy

Question 4

Producer

Answer 4

The green plant that makes food via photosynthesis and gets eaten by first stage consumer

Question 5

Boiaccumulation

Answer 5

The build up of persistent or non biodegradable pullutants within an organsim or trophic system this means that orgranisms at higher trophic levels may accumulate higher concentration of pollutants that those at lower trophic levels

Question 6

Biomagnification

Answer 6

The increase in the concentration if persistent or non bio degradable pollutants along a food chain as pollutants are passed up the food chain from one trophic level to the next they can become more concentrated due to decrease in total biomass of organisms at higher trophic levels

Question 7

Producers

Answer 7

Green plants

Question 8

Primary consumer

Answer 8

Usually a herbivore

Question 9

Secondary consumers

Answer 9

Usually Carnivores

Question 10

Predators

Answer 10

Kill for food

Question 11

Prey

Answer 11

The animals that get killed

Question 12

Scavengers

Answer 12

Feed on dead animals

Question 13

Decomposers

Answer 13

Feed on dead and decaying organisms