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WorksheetsQ3: Marine worms
Total questions: 15
Worksheet time: 15mins
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.
What type of symmetry do Platyhelminthes bodies have?
bilateral
radial
asymmetrical
both asymmetrical and radial
This Bobbit worm has a segmented body. What Phylum of Marine Worm would that be?
Platyhelminthes
Annelida
Tube Worm
Nematoda
Which worm phylum is represented by arrow worms, small and translucent with bristles around their mouths to catch food?
Phylum Pogonophora
Phylum Nematoda
Phylum Chaetognatha
Phylum Nemertea
Which phylum does this arrow worm belong to?
Phylum Chaetognatha
Phylum Pogonophora
Phylum Nemertea
Phylum Platyhelminthes
A stiff hair, bristle or bristle like process or part on an organism
Ganglia
Setae
Nerve Net
Nephridia
The endoderm on a worm is the:
Innermost tissue layer (or "inside skin")
Outermost tissue layer (or "outer skin")
The area on the head only
Middle tissue layer(or "middle skin")
What type of symmetry does the organism have?
Asymmetrical
Radial
Bilateral
Back of the body:
Ventral/ Anterior
Dorsal/ Posterior
Inferior
Sagittal
Front of the body
Ventral/ Anterior
Dorsal/ Posterior
Superior
Sagittal
