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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 Signup and view all the answers

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

Ectoderm Signup and view all the answers

What feature do jellyfishes and corals have in common?

Radial symmetry Signup and view all the answers

Which phylum is characterized by having a true body cavity?

Annelida Signup and view all the answers

What is unique about the movement of Nematodes?

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

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

Oligochaeta Signup and view all the answers

What is the function of hirudin in leeches?

Preventing blood coagulation Signup and view all the answers