Question

name the respiratory organ of amoeba,earthworm and cockroach

Answer 1

-in case of amoeba respiration takes place by diffusion from the cell membrane.
-earthworm have pores on their skin so mostly they respire by diffusion from their skin
-cockroaches have tiny spiracles (holes) in their body for exchange of gases

Answer 2

Amoebae and Earthworms- moist skin
Cockroaches- spiracles