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Earthworm Dissection Review

Total questions: 43

Worksheet time: 23mins

Name
Class
Date
1.

Bristle-like structures in which help the worm move

a)

Setae

b)

Clitellum

c)

Gizzard

d)

Crop

2.

Earthworms don't have teeth to grind their food so they use another organ to do so. It is called a

a)

Setae

b)

Crop

c)

Gizzard

d)

Clitellum

3.

Thickened non-segmented structure of the body indicating an adult worm that is available for reproduction

a)

Setae

b)

Clitellum

c)

Crop

d)

Gizzard

4.

This structure is used for food storage.

a)

Clitellum

b)

Crop

c)

Setae

d)

Gizzard

5.

Heart-like structure

a)

Gizzard

b)

Aortic Arches

c)

Setae

d)

Crop

6.

Indicates toward the head

a)

Anterior

b)

Posterior

c)

Ventral

d)

Dorsal

7.

Indicates away from the head

a)

Anterior

b)

Posterior

c)

Ventral

d)

Dorsal

8.

Abdominal Side

a)

Anterior

b)

Posterior

c)

Ventral

d)

Dorsal

9.

Backside

a)

Anterior

b)

Posterior

c)

Ventral

d)

Dorsal

10.

Which part is labeled A?

a)

Mouth

b)

Anus

c)

Clitellum

d)

Setae

11.

Which part is labeled I?

a)

Clitellum

b)

Setae

c)

Crop

d)

Aortic Arches

12.

Which part is labeled C?

a)

Crop

b)

Gizzard

c)

Clitellum

d)

Setae

13.

Which part is labeled D?

a)

Crop

b)

Gizzard

c)

Brain

d)

Stomach

14.

Which part is labeled G?

a)

Clitellum

b)

Setae

c)

Gizzard

d)

Aortic Arches

15.

Which part is labeled L?

a)

Setae

b)

Clitellum

c)

Gizzard

d)

Anus

16.

Which part is labeled F?

a)

Mouth

b)

Anus

c)

Clitellum

d)

Setae

17.

Which part is labeled J?

a)

Mouth

b)

Brain

c)

Anus

d)

Clitellum

18.

What phylum does the earthworm belong?

a)

Annelid

b)

Anthropod

c)

Insecta

d)

Invertebra

19.

The earthworm is divided into

a)

Segments

b)

3 Parts

c)

Circles

d)

Front and Back

20.

Which structure is labeled E?

a)

Brain

b)

Intestine

c)

Setae

d)

Crop

21.
Earthworms have setae, which are like bristles that help them ___.
a)
move
b)
eat
c)
reproduce
22.
An earthworm has both male and female organs. It is known as a ________.
a)
hermaphrodite
b)
condaphrodite
c)
sterile animal
23.
Earthworms eggs are laid .....
a)
in a soft shell
b)
in a cocoon of mucus
c)
in a nest for protection
d)
in a hard shell
24.
The swollen part of the worm is called the __________. It signals that the worm is an adult and is able to reproduce.
a)
gizzard
b)
crop
c)
clitellum
d)
segment
25.
Earthworms have a ____ circulatory system 
a)
open 
b)
closed 
c)
false
d)
transitional
26.
Identify the structure labeled A.
a)
Clitellum
b)
Prostomium
c)
Female Genital Pore
d)
Male Genital Pore
27.
Identify the structure labeled D.
a)
Clitellum
b)
Prostomium
c)
Female Genital Pore
d)
Male Genital Pore
28.
Identify the structure labeled B.
a)
Clitellum
b)
Prostomium
c)
Female Genital Pore
d)
Male Genital Pore
29.
Identify the structure labeled C.
a)
Clitellum
b)
Prostomium
c)
Female Genital Pore
d)
Male Genital Pore
30.
What is the function of the structure labeled D?
a)
To open/close the mouth
b)
To secrete fertilized eggs
c)
To secrete sperm
d)
To secrete mucus for cocoon.
31.

Like most animals, earthworms need to take in oxygen. How do earthworms take in oxygen?

a)

through their gills

b)

through their lungs

c)

through their skin

d)

through their hearts

32.

Like all organisms, the earthworm has a preferred environment. Which statement below best describes the environment where an earthworm would survive the best?

a)

a desert, because the soil is sandy, hot, and dry

b)

a prairie, because the soil is damp and full of decaying matter

c)

a pond, because the soil on the bottom is very wet and full of decaying matter

d)

a mountain, because there isn't very much topsoil and it is very cold

33.

There are many different species of worms. Some have very flat bodies while others have rounded bodies. ALL worms--

a)

live in dark, moist places

b)

are good for humans

c)

have bodies made up of segments

d)

have no backbone

34.

What is the niche of the earthworm?

a)

producer

b)

decomposer

c)

carnivore

d)

predator

35.

Why is there a "lip" or piece of skin the covers the earthworm's mouth?

a)

It helps the worm dig and eat

b)

It protects the worm from choking on food

c)

It grindes the food

36.

What is the function of the crop?

a)

helps the worm drink water

b)

grinds food

c)

stores food

37.

How many aortic arches are there in an earthworm?

a)

1

b)

3

c)

2

d)

5

38.

What function do the aortic arches have?

a)

transfer oxygen

b)

pump blood throughout the body

c)

send and receive sensory information

39.
What do earthworms eat?
a)
grass
b)
insects
c)
dirt
40.
Earthworms are ___.
a)
Invertebrates
b)
Vertebrates
41.
Tail region of the earthworm
a)
Anterior
b)
Posterior
c)
Prostromium
d)
Ventral
42.
Bottom side of the earthworm 
a)
Dorsal
b)
Ventral
c)
Anterior
d)
Posterior
43.
Top side of the earthworm
a)
Dorsal
b)
Ventral
c)
Anterior
d)
Posterior

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