20 facts about earthworm
Answers
Explanation:
An earthworm is a tube-shaped, segmented worm found in the phylum Annelida. They have a world-wide distribution and are commonly found living in soil, feeding on live and dead organic matter. An earthworm's digestive system runs through the length of its body. It conducts respiration through its skin. It has a double transport system composed of coelomic fluid that moves within the fluid-filled coelom and a simple, closed blood circulatory system. It has a central and a peripheral nervous system. The central nervous system consists of two ganglia above the mouth, one on either side, connected to a nerve cord running back along its length to motor neurons and sensory cells in each segment. Large numbers of chemoreceptors are concentrated near its mouth. Circumferential and longitudinal muscles on the periphery of each segment enable the worm to move. Similar sets of muscles line the gut, and their actions move the digesting food toward the worm's anus.
Answer:
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- an earthworm can grow only so long.
- a worm has no arms legs or Eyes.
- there are approximately 2700 different kinds of earthworms.
- in one acre of land there can be more than a million earthworms.
- worms are cold blooded animals.
- baby bones are not want they had from kukur smaller than a grain of rice.
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