Phylum Annelida

Question 1

Parapodia

Answer 1

“Feet” on either side of a worm

Question 2

Coelom

Answer 2

The gut cavity surroundin the intestines

Question 3

Longitudinal muscles

Answer 3

Muscles running along the length of an Anne lid that allows locomotion

Question 4

Circular muscles

Answer 4

Muscle that surrounds the body of the Anne lid that work in conjuction with the longitudinal muscles to allow locomotion

Question 5

Pharynx or probosis

Answer 5

Organ that connects the mouth with the esophagus

Question 6

Prostomium

Answer 6

Unsegmented preoral portion of the head

Question 7

Peristomium

Answer 7

Unsegmented portion if the head that is located between the prostomium and charter 1

Question 8

Chaetiger 1

Answer 8

First segment with parapodia

Question 9

Pygidium

Answer 9

The unsegmented tail region of the worm

Question 10

Epitoky

Answer 10

Process of reproductiom in polychaetes referring to the growth of a reproductive epitome that is released during a specific time in the lunar cycle

Question 11

Swarming

Answer 11

Reproductive behavior in time with the lunar cycle when certain polychaete swarm at the surface

Question 12

Anterior

Answer 12

Head region

Question 13

Posterior

Answer 13

End or tail region

Question 14

Ventral

Answer 14

Belly side

Question 15

Dorsal

Answer 15

Back side

Question 16

Dioecious

Answer 16

Having reproductivery organs of one gender or another

Question 17

Trocophore

Answer 17

Planktonic larval stage of the polychaete

Question 18

Example of polychaete

Answer 18

Nereis

Question 19

Example of oligochaeta

Answer 19

Earthworms

Question 20

Example of hirudinea

Answer 20

Leeches

Question 21

Example of pogonophora

Answer 21

Tube worm

Question 22

Example of echiura

Answer 22

Spoon worm

Question 23

What are the general characteristics of thus phylum?

Answer 23

They are segmented worms, good crawlers, burrowers, have a coelum, and live in various tropic habitats.

Question 24

What kind of feeders are in this phylum?

Answer 24

Carnivorus, scavengers, deposit feeders, and filter feeders

Question 25

Most Anne lids are members of what class

Answer 25

Ploychaeta

Question 26

What type of feeders are polychaeta?

Answer 26

Carnivores

Question 27

What structures does the needs use to capture prey?

Answer 27

Pharynx and jaws

Question 28

What are the jaws made of

Answer 28

Protein and zinc

Question 29

What is another name for the pharynx?

Answer 29

Probosis

Question 30

What happens to the body before epitoky?

Answer 30

The anterior portion becomes the atone and begins to produce reproductive copies of itself called epitoke

Question 31

What are the pals and tentacle cirri used for?

Answer 31

Sensory and feeling

Question 32

What is the cuticle and what does it do

Answer 32

Covers the worm for moisture control

Question 33

How many eyes does the mere is have?

Answer 33

4

Question 34

What is the name for the simple, invertebrate eyes?

Answer 34

Singular - ocellus

Plural - ocelli

Question 35

What structure does the nereis use to evert it’s pharynx?

Answer 35

The protractor muscles

Question 36

What’s the major difference between oligochaetes and polychaetes?

Answer 36

Oligochetes have no parapods, are hermaphroditic, no larval stages, and are terrestrial while polychaetes are marine

Question 37

How are leeches used in medicine?

Answer 37

They bring fresh blood to the skin.

After microsurgery or limb reattachment.

To add an anticoagulant to the area to prevent blood from clotting.

Question 38

Is prostomium anterior

Answer 38

Yes

Question 39

Is pygidium anterior

Answer 39

No, it’s posterior

Question 40

Is the pharynx anterior

Answer 40

Yes

Question 41

Is the peristomium anterior

Answer 41

Yes

Question 42

Is the anal cirri anterior

Answer 42

No, it’s posterior

Question 43

Is the ocelli anterior

Answer 43

Yes