prostomium function

The prostomium is actually a sensory device. Earthworms do not have a nose, eyes, ears, or hands to gather sensory information about their environment. Instead, they depend on their prostomium and sensory receptors in their skin to "feel" their way through the soil. The first body segment is called the peristomium.

1. What is a Prostomium in biology?
2. How does the Clitellum function?
3. What happens to the Prostomium while the earthworm moves?
4. What is the function of annelida?
5. What is Typhlosole and its function?
6. How many hearts does a worm have?
7. Is function of Spermatheca in earthworm?
8. What does annelid mean?
9. Why do worms have 5 hearts?
10. What do scientists call the front end of the worm?
11. What is it called when a worm moves?

What is a Prostomium in biology?

- The prostomium is the head part which is fleshy and segmented and the periosteum is the first segment of the body of annelid. ... The prostomium involves many sensory organs that help annelids to thrust inside the soil.

How does the Clitellum function?

The clitellum is a thick, saddle-like ring found in the epidermis (skin) of the worm, usually with a light-colored pigment. To form a cocoon for its eggs, the clitellum secretes a viscous fluid. This organ is used in sexual reproduction of some annelids, such as leeches.

What happens to the Prostomium while the earthworm moves?

What happens to the prostomium while the earthworm moves? It stays and guides the earthworm.

What is the function of annelida?

As the leech develops, its coelom becomes nearly filled with connective tissue. Internal features of the polychaetes are shown in the figure. The coelomic fluid of annelids plays a role in many important functions—e.g., locomotion and regulation of fluid transfer through the body wall (osmoregulation).

What is Typhlosole and its function?

In earthworms, it is a dorsal flap of the intestine that runs along most of its length, effectively forming a tube within a tube, and increasing the absorption area by that of its inner surface. Its function is to increase intestine surface area for more efficient absorption of digested nutrients.

How many hearts does a worm 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.

Is function of Spermatheca in earthworm?

Its purpose is to receive and store sperm from the male or, in the case of hermaphrodites, the male component of the body. Spermathecae can sometimes be the site of fertilization when the oocytes are sufficiently developed. ... The spermathecae receive and store the spermatozoa of another earthworm during copulation.

What does annelid mean?

: any of a phylum (Annelida) of usually elongated segmented coelomate invertebrates (such as earthworms and leeches)

Why do worms have 5 hearts?

In the worm world, these wonderful earth loving creatures have five blood pumping organs in their tiny, hard working bodies. ... But the worms' hearts do not fill up with blood the way humans do, they just squeeze the two blood vessels which help to circulate the blood through out the body.

What do scientists call the front end of the worm?

Earthworm Observation: External Anatomy

Find the anterior (front) end of the earthworm by locating the fleshy bump over its mouth, called the prostomium. The posterior (back) end has a small hole where solid waste is expelled, called the anus.

What is it called when a worm moves?

They move by crawling. sikringbp and 11 more users found this answer helpful.