Characteristics. All worms are bilaterally symmetrical, meaning that the two sides of their bodies are identical. They lack scales and true limbs, though they may have appendages such as fins and bristles. Many worms have sense organs to detect chemical changes in their environments, and some have light-sensing organs.
What are 5 characteristics of worms?
They have five paired organs that act like hearts to pump their blood through large blood vessels. They have a brain and nerve cord. They have reproductive organs and waste-removal organs. Well-developed muscles let the worms crawl through the soil or on top of the ground.
What are the 3 characteristics of a worm?
What are 3 characteristics of worms? Worms have a long body with no legs, a distinct head and tail end, are typically small, and have a simple brain connected to a nerve cord.
What are two facts about worms?
An earthworm can grow only so long. ... A worm has no arms, legs or eyes.There are approximately 2,700 different kinds of earthworms.Worms live where there is food, moisture, oxygen and a favorable temperature. ... In one acre of land, there can be more than a million earthworms.Worm Facts | The Adventures of Herman the Worm | U of I Extension
What characteristics do earthworms have?
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.
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