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What is the adaptation of worms?
Earthworms are adapted for life underground. Their streamlined shape allows them to burrow through soil. They have no skeletons or other rigid structures to interfere with their movement.
What adaptation do marine oceanic worms possess for obtaining oxygen?
Many of these worms have specialized tentacles used for exchanging oxygen and carbon dioxide and also may be used for reproduction. These specialized tentacles allow for gas exchange, further decreasing oxygen content in dead zones and in shallow water, which encourages plant and algae growth.
What are characteristics of marine worms?
They are bilaterally symmetrical, unsegmented worm-like animals ranging from 2 mm to 72 cm in length, with most species being under 10 centimetres. They are relatively common, living in shallow waters, either in burrows, in discarded shells or in a hole in solid rocks which they have bored out.
How do worms survive in the ocean?
Water temperature appears to be a key factor in keeping the worms alive. The worms are being kept in ocean water with hydrogen sulphide pumped in to make the environment similar to that of a deep ocean vent. This gas, which is poisonous to most forms of life, provides food to the bacteria that live in the worms.
How do worms move?
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.
How are giant tube worms adapted to their environment?
Giant tube worms are adapted to life in extreme conditions. They can withstand pressure of 2.000 pounds per square inch and rapid changes in water temperature (from boiling to freezing). Males and females release eggs and sperm cells directly into the water (by retracting their plumes).
What is the special adaptation of phylum Annelida?
An earthworm has a streamlined body with no antennae or fins or arms or legs! This streamlined shape is an adaptation to living in narrow burrows underground and the need to move easily through the soil. An earthworm has circular muscles that surround each body segment.