Marine Science Unit 3 Pretest Mollusca and Marine Worms

Segmented worms are known as

• Nematodes

• Annelids

• Planarians

• Cnidarians

Annelids reproduce by what type of reproduction?

• Asexual

• Sexual

• Fragmentation

• Both asexual and sexual

Annelids are hermaphrodites. Define this term.

• They have three tissue layers.

• They have a body cavity.

• They produce both egg and sperm.

• They can regenerate lost body parts.

_{Phylum Annelida are ...}

• Segmented Worms
• round worms
• circle worms
• не о чем 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

Which phylum do roundworms belong to?

• Turbellaria
• Cestoda
• Nematoda 
• Porifera 

What type of symmetry do Platyhelminthes bodies have?

• bilateral

• radial

• asymmetrical

• both asymmetrical and radial

Which phylum do roundworms belong to?

• Turbellaria
• Cestoda
• Nematoda 
• Porifera 

What is the spear like appendage on the head of some worms that are used for killing prey?

• Coelom
• Parapodia
• Ganglia
• Proboscis

This Bobbit worm has a segmented body. What Phylum of Marine Worm would that be?

• Platyhelminthes

• Annelida

• Tube Worm

• Nematoda