Exploring the World of Worms

Which of the following phyla do flatworms belong to?

• Nematoda

• Annelida

• Platyhelminthes

• Arthropoda

What is a key characteristic of the Annelida phylum?

• Lack of body segmentation

• Presence of a complete digestive system

• Absence of a body cavity

• Radial symmetry

Which of the following is an example of a nematode?

• Earthworm

• Tapeworm

• Roundworm

• Planarian

How do tapeworms primarily obtain nutrients?

• Photosynthesis

• Absorbing nutrients from their host's intestines

• Hunting small insects

• Filtering water

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Which of the following worms is known for its segmented body?

• Planarian

• Hookworm

• Earthworm

• Tapeworm

Tags

NGSS.MS-LS4-2

What type of symmetry do nematodes exhibit?

• Radial symmetry

• Bilateral symmetry

• Asymmetry

• Spherical symmetry

Which of the following is a characteristic of Platyhelminthes?

• Presence of a coelom

• Segmented body

• Flat, unsegmented body

• Jointed appendages

Leeches are part of which phylum?

• Nematoda

• Annelida

• Platyhelminthes

• Cnidaria

Which of the following worms is a common parasite in humans?

• Earthworm

• Planarian

• Hookworm

• Leech

How do free-living planarians differ from parasitic tapeworms?

• Planarians have a segmented body, while tapeworms do not

• Planarians have a complete digestive system, while tapeworms absorb nutrients directly

• Planarians are parasitic, while tapeworms are free-living

• Planarians lack bilateral symmetry, while tapeworms have it

Tags

NGSS.MS-LS4-2