Understanding Roundworms

How many species of roundworms are currently classified?

• 20,000 species

• 1 million species

• 100,000 species

• 50,000 species

Tags

NGSS.HS-LS2-2

What is the size range of roundworms?

• Microscopic - 15 meters

• Microscopic - 1 meter

• Microscopic - 7 meters

• 1 meter - 10 meters

What type of symmetry do roundworms have?

• Asymmetrical

• Spherical symmetry

• Bilateral symmetry

• Radial symmetry

What is the outer skin of roundworms called?

• Chitin

• Shell

• Cuticle

• Epidermis

How do most roundworms reproduce?

• Not applicable

• Sexual and Asexual

• Only asexually

• Only sexually

Tags

NGSS.MS-LS3-2

What is a pseudocoelom?

• A digestive organ

• A reproductive organ

• An empty body cavity

• A type of muscle

Which system is absent in roundworms?

• Excretory system

• Digestive system

• Circulatory and respiratory system

• Nervous system

What type of digestive system do roundworms have?

• No digestive system

• Incomplete (1 opening)

• Complete (2 openings)

Which of the following is NOT a category of roundworms?

• Guinea Worms

• Pinworms

• Earthworms

• Hookworms

How are hookworms typically acquired?

• Direct contact

• Airborne particles

• Contaminated water

• Through infected soil