13.1 Food chains and energy transfer

Question 1

define biomass:

Answer 1

• the mass of living material of an organism
• chemical energy store of the organism

Question 2

define producers:

Answer 2

organisms that can make organic compounds from CO2 by photosynthesising

Question 3

what are 2 types of producers?

Answer 3

• land
• aquatic

Question 4

give examples of land producers

Answer 4

• plants
  (trees, shrubs, grasses)

Question 5

give examples of aquatic producers

Answer 5

• algae
• phytoplankton
• plants (waterlilies)