Annelids (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

If present, which type of skeleton is found in worms?

• Longitudinal
• Circular
• Exoskeleton
• Hydrostatic

Which phylum of worms are pseudoceolomates?

• Platyhelminthes
• Nematoda
• Annelida

Which of the following is the evolutionary advancement first found in annelids?

• Three germ layers
• A complete digestive system
• Cephalization
• Coelomates (tube within a tube)

Which phylum includes flatworms, planarians and liver flukes?

• Platyhelminthes
• Nematoda
• Annelida

Which phylum contains segmented worms like earthworms and leeches?

• Platyhelminthes
• Nematoda
• Annelida

Which phylum is the first to exhibit a closed circulatory system?

• Platyhelminthes
• Nematoda
• Annelida

Worms take in oxygen through their

• lungs

• skin

• hearts

• mouth

What word means the "front" of the worm?

• dorsal

• ventral

Which of the following phyla contains  mostly parasitic roundworms?

• Annelida
• Cnidara
• Nematoda
• Platyhelminthes