What is scientific name of earthworm?

What is scientific name of earthworm?

Lumbricina
Earthworm/Scientific names

What are the lines on an earthworm called?

An earthworm moves via a line of bristles called setae, which can be found in pairs on each segment.

What characteristics are used to identify the earthworm Class 11?

The earthworms can be identified using the following characteristics:

• Long and cylindrical narrow body.
• Bilateral symmetry.
• It is light brown in colour with purple tinge at the anterior end.
• The division of body into many segments or metameres.
• The dorsal surface of the body is marked by a dark mid dorsal line.

What is earthworm Class 11?

An earthworm is a segmented worm; a terrestrial invertebrate belonging to the phylum Annelida. They are the common inhabitants of moist soil and feed on organic matter. This is because the worm casting (faecal deposit) increases the fertility and burrowing helps in proper aeration of the soil.

Does a worm have a brain?

Do worms have brains? Yes, although they are not particularly complex. Each worm’s brain sits next to its other organs, and connects the nerves from the worm’s skin and muscles, controlling how it feels and moves.

How long can earthworms grow?

Depending on the species, an adult earthworm can be from 10 mm (0.39 in) long and 1 mm (0.039 in) wide to 3 m (9.8 ft) long and over 25 mm (0.98 in) wide, but the typical Lumbricus terrestris grows to about 360 mm (14 in) long.

Does a worm have cells?

Like all animals, worms’ bodies are composed of many cells. Viruses are particles of RNA or DNA enclosed in protein that protect them, and are much smaller than even a single cell. Being animals, worms have all of the biological capabilities necessary for reproduction.

What is the Colour of earthworm?

reddish brown
Earthworms are usually reddish brown in colour. Their dorsal surface is darker compared to the ventral side.

How many hearts does an earthworm have?

Heartbeats: Worms don’t have just one heart. They have FIVE! But their hearts and circulatory system aren’t as complicated as ours — maybe because their blood doesn’t have to go to so many body parts. Moving around: Worms have two kinds of muscles beneath their skin.

How big is a worm?

Does a worm have eyes?

No, not really. Instead, they have cells called receptors that can sense whether it’s light or dark. This allows worms to tell if they’re underground or above ground.

Do worms bleed?

Well, the short answer to your question is: yes. Many worms do have blood, and it is either colourless or pink, or red, or even green!

How many questions are there in earthworm test – zoology class 11?

This contains 30 Multiple Choice Questions for Class 11 Earthworm Test – Zoology, Class 11 (mcq) to study with solutions a complete question bank. The solved questions answers in this Earthworm Test – Zoology, Class 11 quiz give you a good mix of easy questions and tough questions.

What are the segments 14-16 of a mature earthworm?

The segments 14-16 of a matured earthworm consist of a glandular tissue called clitellum which helps us to distinguish the mouth and tail ends. The body is divided into three segments with respect to clitellum- preclitellar, clitellar and postclitellar. Earthworms are hermaphrodites i.e., they carry both male and female sex organs.

Where does the stomach begin and end in an earthworm?

The stomach leads to the intestine which begins from the 15 th segment and continues till the last segment of the earthworm’s body. On the 26 th segment, there is a pair of short and conical intestinal caecae.

Where is the sensory system present in earthworms?

The sensory system of the earthworms is present in the anterior portion of the body. Earthworms are bisexual. Hence, each individual carries both male and female reproductive systems in them.