One of the following organisms has a saprophytic mode of nutrition. This organism is : (a) mushroom (b) malarial parasite (c) leech (d) lice
One of the following animals does not use tracheae as the respiratory organs. This animal is : (a) grasshopper (b) prawn (c) mosquito (d) cockroach
Question 3 Which one of the following disease is not transmitted by a mosquito? (a) Brain fever (b) Malaria (c) Typhoid (d) Dengue