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Annelida

Total questions: 35

Worksheet time: 18mins

Name
Class
Date
1.

External bristles are also known as ___________.

a)

coelom

b)

septa

c)

setae

d)

parapodia

2.

What class do earthworms belong to?

a)

Polychaeta

b)

Oligochaeta

c)

Hirudinida

d)

None of the listed classes

3.
A body having three layers of tissue with organs and organelles is said to be _______________________.
a)
diploblastic
b)
ectodermic
c)
endodermic
d)
triploblastic
4.
Earthworms have setae, which are like bristles that help them ___.
a)
move
b)
eat
c)
reproduce
5.
Which part of the Mollusk body is specialized for burrowing, feeding, and movement?
a)
trochophores
b)
visceral mass
c)
mantle
d)
foot
6.
Which part of the Mollusk body is the tissue covering the body and secretes the shell?
a)
Mantle
b)
Trochophore
c)
Foot
d)
Visceral Mass
7.
What Mollusk group does the picture belong to?
a)
Gastropod
b)
Bivalve
c)
Cephalopod
8.
What Mollusk group does the picture belong to?
a)
Gastropod
b)
Bivalve
c)
Cephalopod
9.
Organs that are in contact with blood supply and specialized for gas exchange
a)
trochopore
b)
radulas
c)
bivalves
d)
gills
10.
Mollusk's tongue-like strip covered with teeth that point backward is called the ____
a)
trochopore
b)
radula
c)
gills
d)
visceral mass
11.
Which group of Mollusks does the picture belong to?
a)
Gastropod
b)
Bivalve
c)
Cephalopod
12.
# 16 Points to what feature?
a)
excurrent siphon
b)
incurrent siphon
c)
intestines
d)
foot
13.
What type of symmetry do MOST mollusks have?
a)
Bilateral
b)
Radial
c)
Circular
d)
Asymmetrical
14.
Which class of Mollusks include clams, oysters, and mussels?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
15.

What do annelids and mollusks have in common?

a)

segments

b)

coelomates

c)

mantle

d)

parasites

16.

How many classes belong to Annelida?

a)

1

b)

2

c)

3

d)

4

17.

Which class do marine worms belong to?

a)

Polychaeta

b)

Oligochaeta

c)

Hirudinea

d)

None of the listed classes

18.

Which of the following phyla was the first to exhibit body segmentation?

a)

Annelida

b)

Mollusca

c)

Cnidara

d)

Echindermata

19.

To what class does this organism belong?

a)

Oligochaeta

b)

Polychaeta

c)

Hirudinea

20.

To what class does this organism belong?

a)

Oligochaeta

b)

Polychaeta

c)

Hirudinea

21.
A stiff hair, bristle or bristle like process or part on an organism
a)
Ganglia
b)
Setae
c)
Parapodia
d)
Nephridia
22.
Which structure is NOT associated with digestion?
a)
Gizzard
b)
pharynx
c)
nephridia
d)
crop
23.

Which of the following is a structure related to excretion in worms?

a)

Ganglia

b)

Gizzard

c)

Nephridia

d)

Crop

24.
The leg-like structures seen in polychaetes are called
a)
Setae
b)
Parapodia
c)
Antennae
d)
Trochophores
25.

Earthworms have which type of symmetry?

a)

Radial

b)

Bilateral

c)

No Symmetry

d)

Prismatic

26.

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

27.
Earthworms have a ____ circulatory system 
a)
open 
b)
closed 
c)
false
d)
transitional
28.

What characteristic is associated with the Phylum Annelida?

a)

Bilateral symmetry

b)

Segmented body

c)

Radial symmetry

d)

Invertebrate

e)

complete digestive system and circulatory systme

29.

What is a unique feature of the digestive system of earthworms?

a)

They have a single stomach.

b)

They have a crop and gizzard.

c)

They have a beak.

d)

They have a rumen.

30.

Circular muscles do what to an annelid when contracted?

a)

lengthen

b)

shorten

c)

turn

d)

protect

31.

Longitudinal muscles do what to an annelid when contracted?

a)

lengthen

b)

shorten

c)

turn

d)

protect

32.

Which advantages stemmed from metamerism?

a)

redudancy

b)

specialization

c)

adaptability

d)

speed

e)

efficient movement

33.

How many bristles per setae in bristle worms?

a)

many

b)

4 pairs

c)

none

34.

How many bristles per setae in earth worms?

a)

many

b)

4 pairs

c)

none

35.

How many bristles per setae in leeches?

a)

many

b)

4 pairs

c)

none

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