Grouping of Animals on the Basis of Body Cavity

Which of the following animals is classified as a coelomate?

• Earthworm

• Flatworm

• Jellyfish

• Coral

What is the primary characteristic of a pseudocoelomate animal?

• True body cavity

• No body cavity

• Body cavity not fully lined with mesoderm

• Body cavity fully lined with mesoderm

Which of the following is an example of an acoelomate animal?

• Planaria

• Earthworm

• Roundworm

• Starfish

Tags

NGSS.MS-LS4-2

In which group of animals is the body cavity completely absent?

• Acoelomates

• Pseudocoelomates

• Coelomates

• Hemocoelomates

Which of the following statements is true about coelomates?

• They have a body cavity partially lined with mesoderm.

• They lack a body cavity.

• They have a body cavity fully lined with mesoderm.

• They have a body cavity not lined with mesoderm.

What type of body cavity do nematodes possess?

• Coelom

• Pseudocoelom

• Acoelom

• Hemocoel

Tags

NGSS.MS-LS4-2

Which of the following animals is a pseudocoelomate?

• Roundworm

• Earthworm

• Flatworm

• Jellyfish

Which of the following is a characteristic of acoelomates?

• Presence of a true coelom

• Absence of a body cavity

• Presence of a pseudocoelom

• Presence of a hemocoel

Which of the following animals is not a coelomate?

• Human

• Fish

• Flatworm

• Bird

Tags

NGSS.MS-LS4-2

What is the function of a coelom in coelomate animals?

• Provides structural support

• Acts as a hydrostatic skeleton

• Facilitates movement of internal organs

• All of the above