Name the respiratory organs of the following organisms. [3 marks]
a) Fishes
b) Mosquitoes
c) Earthworms
a) Gills [1 mark]
b) Trachea [1 mark]
c) Moist skin [1 mark]
One of the following animals does not use tracheae as the respiratory organs. This animal is : (a) grasshopper (b) prawn (c) mosquito (d) cockroach