Earthworms cannot move on slippery surfaces. Justify this statement. And also describe the type of movement shown by earthworms.
Answers
Answer:
Explanation:
An earthworm moves using circular and longitudinal muscles, as well as bristles called setae. Earthworms have microscopic hairs or bristles all over their body which provide the necessary traction while movement. These bristles or setae are present on each segment of their body and it imparts the necessary grip or anchorage for forward and backward movement.
Glass is smooth in nature so earthworms cannot move as the setae will not get sufficient surface support to move the body.
Answer:
An earthworm moves using circular and longitudinal muscles, as well as bristles called setae. The earthworm can push the setae out of its body to grab the soil around it. To move forward, the worm uses its setae to anchor the front of its body and contracts the longitudinal muscles to shorten its body. So it cannot move on slippery surfaces