21.4

Question 1

include Earth worms sea worms, leeches

Answer 1

segmented worms

Question 2

A typical Annalid and makes a fine specimen to study and dicsect

Answer 2

Earthworm

Question 3

Earthworm have four pairs of these hair like structures on each body segment

Answer 3

Setae

Question 4

How does an earthworm breathe

Answer 4

Through its skin

Question 5

There are 5 pairs of these near the earth worms head

Answer 5

Aortic arches

Question 6

The earthworms excratory organs

Answer 6

Nephridia

Question 7

Largest class of segmented worms

Answer 7

Sea worms

Question 8

All sea worms have these fleshy lobes that assist and movement

Answer 8

Parapodia

Question 9

Parasitic worms that have somewhat flattend body’s and a suction disk

Answer 9

Lecches

Question 10

Worms with flattend bodies

Answer 10

Flatworms

Question 11

Free living flatworms that live as scavengers in ponds streams and lakes

Answer 11

Planarians

Question 12

A planerians “eyes”

Answer 12

Eyespots

Question 13

Parasitic flat worms that spend part of their lives is perisires within snails.

Answer 13

Flukes

Question 14

Parasitic flat worms that live in the intestines of their hosts

Answer 14

Tapeworms

Question 15

The head of a tapeworm

Answer 15

Scolex

Question 16

A non segmented animal with a long and slender body covered by a thin cuticle.

Answer 16

Round worm

Question 17

Worm that inhibits the vessels of the lymphatic system and produces a serious condition called elephantesis

Answer 17

Filaria worm

Question 18

Parasitic round rooms that live in their hosts intestines and suck the host blood.

Answer 18

Hookworms

Question 19

Paracetic round room that causes the disease trickenosis

Answer 19

Tricking worm

Question 20

Worms that feed onpartially digested food.

Answer 20

Ascaris worms