1. The Adaptations of earthworms to their environment
... being cylindrical it is a very good shape for digging tunnels into the ground , the pointed chaetae also help by providing a source of anchorage and also a levering action to help the earthworm move along. The secretions of mucous that the earthworm exhibits help to bond the various sand and soil particles together thereby making them hard and this prevents a tunnel that the ... prevents the worm from losing too much water , and this done by contractions of the sphincter. Due to this more water is then absorbed into the nephridial tube. Although the earthworm does not have a definite he...
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- Grade Level: Undergraduate