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 out
hope this helps
convex lens
fish - fins cockroach-air tube earthworm- skin
A beetle can be found in almost all habitats and a cockroach is more choosy about where they live. Beetles serve a purpose to the ecosystem and cockroaches do not play a very big part in that system.
A frog has legs and a worm doesn't XD =Þ
Similarity between young and adult cockroach is that they have the same number of legs
earthworm-skin plants-stomata
A cockroach has an exoskeleton which makes it more difficult to stick the pin through its surface and earth worm is just skin like a human being.
how can you distinguish between the top and bottom side of an earthworm
Both have six legs!
if it is flying ,it is a mature cockroach if it not flying it may be a mature cockroaches or a nymph (immature)
A baby cockroach looks like a cockroach but smaller. a baby butterfly is a caterpillar.
Wasp can fly whereas earthworm cannot