Question

state three similarities between the alimentary canal of earthworm and cockroach

Answer 1

Answers

1.A cockroach would have jointed appendages whereas an earthworm will none.

2.A cockroach does not have segmented body but an earthworm has a segmented body.

3.Cockroach belongs to phylum arthropoda whereas earthworm belongs to phylum annelida.

the main differences between cockroaches and earthworms are:

Sex - earthworms are hermaphrodites (monoecious) while cockroaches are diecious (male or female)

Respiration - oxygen is absorbed passively through the moist skin of the earthworm while gas diffusion takes place through the spiracles of the cockroach

Nervous System - worms have a central nerve cord while cockroaches have a ventral nerve cord

Locomotion - worms use circular and longitudinal muscles with setae covering the body. Cockroaches use legs and wings to move

Digestive System - the worms digestive tract is straight and simple. the cockroaches is curved and more developed

Skeleton - worms have a hydrostatic skeleton to assist with movement under the soil however cockroaches have an exoskeleton for protection and to avoid drying.

Answer 2

Explanation:

name the biological cycke