food chains and food webs

Question 1

Name the three groups organisms can be divided into?

Answer 1

producers

consumers

decomposers

Question 2

Describe a producer?

Answer 2

• Photosynthetic organisms that manufacture organic substances using light energy, - - h2o and co2
• usually green plants

Question 3

Describe a producer?

Answer 3

• organisms that gain their energy from feeding on organisms rather than using energy from sunlight
• usually animals
• Those who directly eat producers are primary consumers
• secondary eats the primary etc

Question 4

Describe decomposers?

Answer 4

• when producers and consumers die the energy they contain can be used by organisms that break down these complex materials into simple components again.
• This releases valuable minerals and elements that can be absorbed by plants
• fungi, bacteria, detrivores

Question 5

What do the arrows on a food chain represent?

Answer 5

The direction of energy flow

Question 6

What does the term food chain mean?

Answer 6

describes a feeding relationship in which producers are eaten by primary consumers and so on

Question 7

Whats each stage in the food chain referred to as?

Answer 7

Trophic level