CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Basis of Classification

Which one of ...

Question

Which one of the following statement about given animals is correct?

A

Platyhelminths are coelomates.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

Aschelminths are pseudocoelomates.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

Molluscs are acoelomates.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

Arthropods are pseudocoelomates.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B Aschelminths are pseudocoelomates.
Platyhelminthes or flatworms are acoelomates i.e. they lack a coelom. Molluscs and arthropods are coelomates as they have a true coelom derived from the germ layer mesoderm. Aschelminthes or roundworms are pseudocoelomates as the coelom is not derived from the mesoderm.
Thus, the correct answer is option B.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Read the following statements
(i) True coelom is a body cavity which arises as a cavity in the embryonic mesoderm.
(ii) Digestive cavity is found in acoelomates, pseudocoelomates as well as coelomates.
(iii) The body cavity of arthropods and non-cephalopod molluscs is called haemocoel.
(iv) Aschelminthes possess true body cavity.
(v) There is no cavity between the body wall and gut in Echinoderms.
Which of the statements are correct?

Q. Read the following statements:
i) True coelom is a body cavity which arises as a cavity in the embryonic mesoderm
ii) Digestive cavity is found in acoelomates, pseudocoelmates as well as coelomates
iii) The body cavity of arthropods and non-cephaloped molluscs is called haemocoel
iv) Aschelminthes possess true body cavity
v) Echinoderms are bilaterally symmetrical
Which of the above statements are correct?

Body cavity is the cavity present between body wall and gut wall. In some animals the body cavity is not lined by mesoderm. Such animals are called.

(a) Acoelomate

(b) Pseudocoelomate

(c) Coelomate

(d) Haemocoelomate

Q. Which of the following groups have one or more animals who are not pseudocoelomate?

Q. Which of the following statements are incorrect?
(i) Parapodia are lateral appendages in arthropods that are used for swimming.
(ii) Rasping mouth-like organ present in molluscs, are involved in excretion.
(iii) Animals of Aschelminthes are dioecious (separate male and female).
(iv) Echinoderms adults show radial symmetry.
(v) Ctenophores are diploblastic.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Classification of Animals

BIOLOGY

Watch in App

explore_more_icon

Explore more

Basis of Classification

Standard IX Biology

Join BYJU'S Learning Program

CrossIcon