Name:__________________________________
Date:________________________ Period:_____
EARTHWORM TEST
Multiple choice and matching.
1. Which of the parts of the worm’s body are part of the reproductive system?
A) setae B) seminal vesicle C) ventral nerve cord D) dorsal blood vessel
2. Your dissection of the earthworm did not go beyond segment 32.Which of the following parts would
NOT be observed if you dissected the remainder of the worm to its posterior end?
A) dorsal blood vessel B) intestine C) segments D) clitellum
Use the Figure below to answer questions 3. and 4.
3. The clitellum of the worm.
4. The posterior of the worm
B.
A.
D.
C.
E.
---------------------------------------------------------------------------------------------------------------------------5. Connects pharynx and crop A) stomach B) esophagus C) intestine D) stomach
6. Posterior opening for the elimination of waste A) anus B) gizzard C) clitellum D) genital setae
7. Where gases are exchanged A) central ganglia B) setae C) skin D) aortic arches
8. How many heart-like aortic arches serve to pump blood through the worm? A) 1 B) 3 C) 5 D) 7
9. Acts as the brain A) segment B) dorsal aorta C) cerebral ganglia D) anus
10. Provides traction for movement through soil A) setae B) seminal vesicle C) ventral nerve cord
11. Where nutrients are absorbed A) pharynx B) crop C) intestine D) skin
Lab_Science7
Name:__________________________________
Date:________________________ Period:_____
Use Fig. 2 below to choose the the name of the part
12. The organ at I. is the A) seminal vesicle B) esophagus C) aortic arch D) intestine
13. The organ at II is the A) seminal vesicle B) esophagus C) aortic arch D) intestine
14. The organ at III is the A) seminal vesicle B) esophagus C) aortic arch D) intestine
II
I
I.
I
I.
----------------------------------------------------------------------------------------------------------------------------
Earthworms have both male and females parts but so not fertilize themselves. Earthworms reproduce
sexually by lining up and exchanging sperm.
MATCH the FUNCTIONS of the following Earthworm Reproductive parts:
____ 15. Secretes mucus
A. cocoon
____16. Dropped into the soil where a new earthworm develops.
B. clitellum
____17. Stores sperm
C. genital pores
____18. Produces sperm
D. seminal receptacle
____19. Opening for sperm exchange
E. seminal vesicles
Lab_Science7
Name:__________________________________
Date:________________________ Period:_____
20. Label the following diagram with the letter appearing in front of the word.
a. Mouth
2. ___
3. ____
7. ____
1. ___
b. Pharynx
4. ____
5 ____
c. Esophagus
6. ____
_
d. Crop
e. Gizzard
f. Intestine
g. Aortic
DAY
2 - Arches
LAB
h. Dorsal Blood Vessel
14. ____
8. ____
9. _____
13. ____
12. ____
i. Ventral Blood Vessel
11____
10. ____
j. Clitellum
k. Seminal Vesicles
l. Seminal Receptacles
m. Ventral Nerve Cord
n. Brain
21. State the parts of the digestive tract through which food passes in order.
22. How is the earthworm’s nervous system connected throughout the body?
23. Tell which body system the part belongs to in an Earthworm:
Nephridia
___________________________________________________________________
Gizzard
___________________________________________________________________
Aortic arches ___________________________________________________________________
Skin
___________________________________________________________________
Lab_Science7