Worm Zoology

Which of the following is an pseudocoelomate?

• an organism such as Planaria (flatworms) that have no body cavity
• an organism such as a jellyfish with a central digestive cavity
• an organism such as a mammal with a body cavity lined with 2 layers of mesoderm
• an organism such as a Nematode (roundworm) that has a "false" body cavity

Which of the following phyla contains the first acoelomate organisms with three tissue layers?

• Annelida
• Cnidaria
• Nematoda
• Platyhelminthes

Which of the following phyla contains the first organisms with closed circulatory systems?

• Annelida
• Cnidaria
• Nematoda
• Platyhelminthes

Which of the following phyla contains the first organisms with complete digestive systems?

• Annelida
• Cnidaria
• Nematoda
• Platyhelminthes

Which of the following phyla contains the first organisms with pseudocoeloms?

• Annelida
• Cnidara
• Nematoda
• Platyhelminthes

Which of the following phyla was the first to exhibit body segmentation?

• Annelida
• Arthropoda
• Cnidara
• Echindermata

Which of the following phyla contains  mostly parasitic roundworms?

• Annelida
• Cnidara
• Nematoda
• Platyhelminthes

Which of the following phyla contains mostly parasitic flatworms?

• Annelida
• Cnidaria
• Nematoda
• Platyhelminthes

Tags

NGSS.MS-LS4-2

Which of the following phyla contains worms with segmented bodies?

• Annelida
• Cnidaria
• Nematoda
• Platyhelminthes

Which of the following phyla includes tapeworms, liver flukes, and planarians?

• Annelida
• Cnidaria
• Nematoda
• Platyhelminthes

Tags

NGSS.MS-LS4-2