Bio 1

Question 1

What is the primary characteristic of the body of annelids?

Answer 1

The body is segmented and has a hard structure that aids locomotion.

Annelids have setae, which are hair-like structures that assist in movement.

Question 2

What type of circulatory system do annelids have?

Answer 2

Annelids have a closed circulatory system.

This means that blood is contained within vessels.

Question 3

Do annelids have a nervous system?

Answer 3

Yes, annelids have a complex nervous system.

This includes a nerve cord and ganglia.

Question 4

What is a unique feature of annelid bodies?

Answer 4

Annelids have segments.

These segments allow for specialization of body parts.

Question 5

Fill in the blank: Annelids can expand to eat _______ objects.

Answer 5

large

Question 6

True or False: All annelids have a hard body structure.

Answer 6

True

Question 7

What aids in locomotion for annelids?

Answer 7

Setae and the segmented body structure.

Setae provide grip and traction while moving.

Question 8

What happens to the mass of annelids when they increase in size?

Answer 8

The mass increases by the addition of segments.

This contributes to their growth and movement capabilities.