The Marine Worms

Which phylum of worms has a bilateral symmetry, one-way digestive system, respiration through skin, hydrostatic skeleton and segmented body?

• Annelida
• Platyhelminthes
• Nemotoda
• Nemertea

What type of symmetry do Platyhelminthes bodies have?

• bilateral
• radial
• asymmetrical
• both asymmetrical and radial

Flatworms can reproduce

• sexually only
• asexually only 
• both sexually and asexually
• neither sexually or asexually

Tags

NGSS.MS-LS3-2

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

• Annelida
• Cnidaria
• Nematoda
• Platyhelminthes

Planaria

• Phylum Platyhelminthes
• Phylum Nematoda
• Phylum Annelida
• Phylum Porifera

What is an Acoelmate?

• Animal with false body cavity
• Animal lacking body cavity
• Animal with true body cavity
• Animal with cavities in its teeth

Which phylum includes hookworms, pinworms, askaris worms and heart worms?

• Platyhelminthes
• Nematoda
• Annelida
• Porifera

Term that describes animals with a hollow, fluid filled cavity completely surrounded by a mesoderm

• acoelomate
• coelomate
• pseudocoelomate
• parasites

Which phylum do roundworms belong to?

• Turbellaria
• Cestoda
• Nematoda 
• Porifera 

Which type of worm is a pseudocoelomate?

• Platyhelminthes
• Nematoda
• Annelida
• Porifera