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Animal Diversity

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Questions and Answers

What is the primary function of the coelom in animals?

To give rise to the central nervous system
To facilitate gas exchange through diffusion
To provide a space for the development of germ layers
To serve as a fluid-filled body cavity for the movement of internal organs (correct)

What is the characteristic that distinguishes radial animals from bilateral animals?

The presence of muscle tissue
The presence of a head (correct)
The presence of nervous tissue
The presence of a backbone

What is the function of the collar cells in sponges?

To capture prey
To facilitate gas exchange
To move water currents
To filter feed (correct)

What is the characteristic that distinguishes vertebrates from invertebrates?

The presence of a backbone (B) Signup and view all the answers

What is the function of the germ layer that gives rise to the central nervous system?

Ectoderm (C) Signup and view all the answers

What feature do jellyfishes and corals have in common?

Radial symmetry (B) Signup and view all the answers

Which phylum is characterized by having a true body cavity?

Annelida (B) Signup and view all the answers

What is unique about the movement of Nematodes?

They move in a whiplike motion (A) Signup and view all the answers

Which class of Annelida is characterized by having a hydrostatic skeleton and sparse chaetae?

Oligochaeta (B) Signup and view all the answers

What is the function of hirudin in leeches?

Preventing blood coagulation (D) Signup and view all the answers