Understanding Worms: Fiction and Reality

Why is the concept of a giant worm like the sandworm in Dune considered fictional?

• Because worms can fly.

• Because worms are vertebrates.

• Because worms have a skeletal system.

• Because worms lack a skeletal system and lungs.

Which category of worms is known for its regenerative abilities?

• Segmented worms

• Roundworms

• Flatworms

• Earthworms

What role do worms play in the soil ecosystem?

• They deplete nutrients from the soil.

• They provide aeration and help in decomposition.

• They block water absorption.

• They increase soil acidity.

What is a common misconception about earthworms and rain?

• They come out to mate.

• They come out to find food.

• They come out because they can't breathe in the soil.

• They come out to enjoy the rain.

What is the primary way worms breathe?

• Through their skin

• Through their mouth

• Through gills

• Through lungs

How do nematodes contribute to scientific research?

• By being used in construction.

• By being a model for studying rare diseases.

• By being a source of food.

• By causing diseases in humans.

What is the dauer stage in nematodes?

• A stage where they reproduce rapidly.

• A stage where they enter a stasis period.

• A stage where they grow limbs.

• A stage where they become parasitic.

What is the significance of C. elegans in research?

• It is a common household pet.

• It is used to study genetic mutations.

• It is used in food production.

• It is a pest in agriculture.

What is the estimated number of nematodes on Earth?

• 100,000

• 4.4 times ten to the 20

• 1 million

• 10 billion

Which of the following is a parasitic worm?

• Flatworm

• Hookworm

• Earthworm

• Segmented worm