Important points of difference between earthworm and cockroach.?

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Earthworm:
1. Anatomy: Earthworms have a long, cylindrical body divided into segments called metameres. They lack legs and have a soft, moist, and slimy body texture.
2. Habitat: Earthworms are found in moist soil, especially in gardens, fields, and forests. They burrow in the soil and are commonly found in areas with decaying organic matter.
3. Respiration: They respire through their skin, which is kept moist by mucus secretions. Oxygen is absorbed through the skin, and carbon dioxide is released.
4. Nervous System: Earthworms have a simple nervous system with a pair of cerebral ganglia (brain) and a ventral nerve cord. They also possess sensory receptors for touch, light, and vibrations.
5. Reproduction: Earthworms are hermaphrodites, which means they have both male and female reproductive organs. They exchange sperm during mating, but cross-fertilization is common.
6. Feeding Habits: Earthworms are detritivores, feeding on decaying organic matter, dead plants, and microorganisms present in the soil. They ingest soil and extract nutrients from it.
7. Movement: Earthworms move by contracting and relaxing their muscles, allowing them to expand and contract their body segments. They use setae (bristles) on their body for grip and movement.
8. Economic Importance: Earthworms enhance soil fertility by improving its structure, aeration, and nutrient content. They are also used as bait in fishing and as a source of food for other organisms.

Cockroach:
1. Anatomy: Cockroaches have a flat, oval-shaped body with long antennae and six legs. They are covered in a hard exoskeleton that provides protection and support.
2. Habitat: Cockroaches are commonly found in warm and humid environments, such as kitchens, bathrooms, and sewers. They are nocturnal and prefer dark, secluded places.
3. Respiration: Cockroaches have a network of tiny tubes called tracheae that deliver oxygen directly to their cells. They do not have lungs but rely on spiracles on their body for gas exchange.
4. Nervous System: Cockroaches have a more advanced nervous system compared to earthworms. They have a brain and a ventral nerve cord, as well as sensory organs to detect light, sound, and touch.
5. Reproduction: Cockroaches have separate sexes, with males and females reproducing sexually. They lay eggs in protective cases called oothecae, which contain multiple eggs.
6. Feeding Habits: Cockroaches are omnivores and can feed on a wide range of organic materials. They scavenge for food and can consume almost anything, including decaying matter, plant material, and even other insects.
7. Movement: Cockroaches are fast and agile runners. They have specialized legs for rapid movement and can crawl on various surfaces, including walls and ceilings. They use their antennae to navigate

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