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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
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∙ 11y ago
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convex lens
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