Phylum Annelida

Segmented worms are known as

• Nematodes

• Annelids

• Planarians

• Cnidarians

Which of the following is not a class in Annelida?

• Hirudinea

• Oligochaeta

• Hydrozoa

• Polychaeta

Which type of symmetry do Annelids possess?

• Radial

• Biradial

• Lateral

• Bilateral

Which term refers to the hard bristle-like, chitinous structures?

• Nephridia

• Spongin

• Setae

• Cilia

Which type of circulatory system do Annelids have?

• Open

• Closed

• Full

• None of the above

In a triploblastic organism, which of the following is not one of the three tissue layers?

• Ectoderm

• Endoderm

• Entoderm

• Mesoderm

Which of the following classes of Annelida are leeches found?

• Hirudinea

• Oligochaeta

• Polychaeta

• All of the above

Which of the following classes of Annelida are earthworms found?

• Hirudinea

• Oligochaeta

• Polychaeta

• All of the above

Which of the following classes of Annelida are clamworms found?

• Hirudinea

• Oligochaeta

• Polychaeta

• All of the above

How many hearts can an earthworm have?

• 2

• 3

• 4

• 5