Annelida

Question 1

Segmented worms

Answer 1

Annelids

Question 2

Hairs made of Chitin

Answer 2

Chaetae

Question 3

Name three Major classes of Annelida

Answer 3

1.Polychaeta
2. Oligochaeta
3. Hirudinea

Question 4

Allows movement with maximum protection.

Answer 4

Segmentation

Question 5

Each segment is separated by ___.

Answer 5

septum

Question 6

Live in the ocean (marine); Many chaetae (chitinous hairs)

Answer 6

Polychaetes

Question 7

In Polychaetes, Each segment has paired ____ for
swimming/crawling or may burrow, using ___

Answer 7

parapodia; peristalsis

Question 8

The statement below describes a reproductive process in Polychaetes called ____:

Posterior (tail) end of worm grows
enlarged gonads and eyes; parapodia
become modified for swimming.
Often, the posterior end will then break
off and swim away to reproduce! It is
called an ____.

Answer 8

Epitoky; epitoke

Question 9

Live in freshwater, land, ocean; Few chaetae (chitonous hairs)

Answer 9

Oligochaeta

Question 10

The movement in Oligochaeta is called _____ which are muscular contractions of body, using both longitudinal and circular muscles.

Answer 10

peristalsis.

Question 11

In Oligochaetes, Worms reproduce by holding ______ together, and
exchanging sperm. It provides mucus for transfer of
sperm, also creates a cocoon for eggs, a
few days later.

Answer 11

clitella (singular is clitellum)

Question 12

Mostly freshwater, some marine; Like to live in ponds; No chaetae

Answer 12

Hirudinea

Question 13

For movement, these annelids have suckers on both ends and move like inchworms

Answer 13

Hirudinea

Question 14

Which annelids is/are Dioecious and which is/are hermaphrodite/s??

Answer 14

Dioecious: Polychaetes
Hermaphrodites: Oligochaetes/ Hirudinea