What is the sense organ in Ascaris?

Ascaris has well-developed sense organs which are simple elevations supplied by nerves. They are either as minute elevations or pits in the cuticle of the body. They include various papillae, amphids, and phasmids.

1. Are there any sensory organs in Ascaris?
2. Which of the following sense organ is present in Ascaris?
3. What is the excretory organ of Ascaris?
4. Which of the following sense organs is present in Ascaris are Chemoreceptors and located in anterior part?
5. What are the characteristics of Ascaris?
6. What sensory organ is unique to nematodes?
7. Which of the following sense organs have Chemoreceptors?
8. What stage of Ascaris is man infective?
9. What is the name of excretory organ in Arthropoda?
10. Do roundworms have excretory organs?
11. What is the name of excretory organ of Hydra?
12. What is the other name of Ascaris?
13. What is Ascaris in biology?
14. What organ systems do roundworms have?
15. Does Ascaris have a body cavity?
16. What type of senses do nematodes have?

Are there any sensory organs in Ascaris?

The sense organs of Ascaris are the simple extensions supplied by nerves. The following are the sense organs of these roundworms. Papillae: They are in the form of small villi situated on different body parts. a) Labial papillae– They are formed by sensory cells surrounded by many supporting cells.

Which of the following sense organ is present in Ascaris?

In Ascaris amphids are chemoreceptor which are present on ventrolateral lips.

What is the excretory organ of Ascaris?

In Ascaris, the excretory system consists of one or two large renette gland cells. A kidney is the excretory organ and mainly found in chordates in different forms, but true kidney found in mammals.

Which of the following sense organs is present in Ascaris are Chemoreceptors and located in anterior part?

"Which of the following sense organs is present in Ascaris are chemoreceptors and located in anterior part?" copulatory Bursa.

What are the characteristics of Ascaris?

Adults: The roundworm Ascaris lumbricoides is the largest intestinal nematode infecting humans, with females averaging 30 cm in length (ranging from 20-49 cm) and measuring 3-6 mm in diameter. Males are smaller, ranging from 15-30 cm in length and 2-4 mm in diameter.

What sensory organ is unique to nematodes?

The bodies of nematodes are covered in numerous sensory bristles and papillae that together provide a sense of touch. Behind the sensory bristles on the head lie two small pits, or 'amphids'. These are well supplied with nerve cells and are probably chemoreception organs.

Which of the following sense organs have Chemoreceptors?

Chemoreceptor organs, such as the carotid bodies (near the bifurcation of the carotid arteries) and the aortic body (adjacent to the ascending aorta at the base of the heart), are clusters of glomus cells supported by glia-like cells.

What stage of Ascaris is man infective?

Under conducive climatic conditions of temperature (25-30°C), high humidity and sufficient supply of oxygen, fertilised eggs moult once and embryonate in 15 to 35 days to become infective. The infective egg contains a second stage larva, coiled within the eggshell.

What is the name of excretory organ in Arthropoda?

The major organ of excretion in arthropods is “Malpighian tubule”.

Do roundworms have excretory organs?

Like flatworms, roundworms have excretory, nervous, and reproductive systems. ... Roundworms have a thick substance called a cuticle on the surface of their bodies that is secreted by the outer epidermal cells.

What is the name of excretory organ of Hydra?

As we know, Hydra is an invertebrate and invertebrates are those which lack specialised organs. Thus there is no such organ through which Hydra can excrete .

What is the other name of Ascaris?

Ascaris lumbricoides, also known as roundworm, Ascaris worms, or giant roundworm, is a nematode parasite that can infect humans by residing in the gastrointestinal tract or in other areas of the body such as the lungs.

What is Ascaris in biology?

Supplement. Ascaris is a genus of parasitic nematodes. They belong to the family Ascarididae, Phylum Nematoda. It includes species of nematodes that infect the intestines of humans, pigs, and horses.

What organ systems do roundworms have?

Worms are classified into three major phyla, or groups. They are flatworms, roundworms, and segmented worms. Flatworms belong to the phylum Platyhelminthes (plat ee hel MIN theeze). Most flatworms are parasites that obtain their food from a host animal.

Does Ascaris have a body cavity?

Ascaris worms have very transparent skin that consists of the cuticle and hypodermis which protect it from the acids in the intestines of the host and assist with locomotion. They also have a 'false' body cavity so they are referred to as pseudocoelomates.

What type of senses do nematodes have?

The nematode has six inner labial sense organs, each with a pair of sensilla, one of which opens to the outside. There are also six outer labial and four cephalic sense organs, arranged radially, none of which opens to the outside in the hermaphrodite of C.