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Sponges, Cnidarians, and Worms

Total questions: 27

Worksheet time: 27mins

Name
Class
Date
1.
Sponges belong to which group of animals?
a)
Vertebrates
b)
Invertebrates
2.
Sponges get their food by 
a)
going through photosynthesis
b)
decomposing it
c)
sponges do not eat
d)
filter feeding
3.
Sponges are ________ which means attached to one spot.
a)
immobile
b)
mobile
c)
sessile
d)
spicule
4.
large opening at the top of a sponge where water exits.
a)
ostia
b)
osculum
c)
orifice
d)
opening
5.
Who lives in a pineapple under the sea?
a)
Spongebob Squarepants
b)
Patrick Star
c)
Mr. Krab
d)
Squidward
6.
What type of symmetry do cnidarians have
a)
asymmetrical
b)
bilateral
c)
radial
7.
Which of the following is a correct description of the Cnidarian digestive tract?
a)
A complete digestive tract consisting of two openings.
b)
A complete digestive tract consisting of one opening
c)
An incomplete digestive tract consisting of two openings.
d)
An incomplete digestive tract consisting of one opening.
8.
Which of the following is a correct description of the polyp body form?
a)
It is sessile and the tentacles and mouth point downward.
b)
It is sessile and the mouth and tentacles point upward.
c)
It is mobile and the tentacles and mouth point downward.
d)
It is mobile and the tentacles and mouth point upward.
9.
What form is this organism? (Image 1)
a)
Polyp
b)
Medusa
10.

In Cnidarians, digestion occurs in the ______.

a)

epidermis

b)

manubrium

c)

Gastrovascular cavity

d)

tentacles

11.

Jellyfish have what type of body structure

a)

Medusa

b)

Polyp

c)

Hydra

d)

Branched

12.

T/F: Cnidarians have eyes that function just like ours do.

a)

True

b)

False

13.

Hydra reproduce asexually by

a)

budding

b)

nematocysts

c)

gland cells

d)

gametes

14.

Which feature do both roundworms and segmented worms have?

a)

They have a one-way digestive system.

b)

They have setae covering their bodies.

c)

They lack a circulatory system.

d)

hey are usually microscopic.

15.

Which worm shown is most likely a segmented worm?

a)
b)
c)
d)
16.

Which worm has eyespots that are used to detect light?

a)

a fluke

b)

a marine worm

c)

a planarian

d)

a tapeworm

17.

Which body structure do earthworms use for gas exchange?

a)

setae

b)

gills

c)

skin

d)

lungs

18.

Which kind of worm has a closed circulatory system?

a)

a fluke

b)

a pinworm

c)

an earthworm

d)

a planarian

19.

What is the difference between a worm's anterior and posterior.

a)

The anterior is its front end and the posterior is its back end.

b)

The anterior is its back end and the posterior is its front end.

c)

The anterior is its teeth and the posterior is tis mouth.

d)

The anterior is its mouth and the posterior is its teeth.

20.
Is the picture a vertebrate or invertebrate?
a)
Vertebrate
b)
Invertebrate
21.
Which is more complex
a)
Cnidarian
b)
Sponge
c)
Worm
22.
Which group of worms is called Annelids?
a)
Roundworms
b)
Flatworms
c)
Segmented worms
d)
All of these
23.
Flatworms have how many body openings?
a)
One
b)
Two
24.

How many openings to the digestive system do Segmented worms have?

a)

1

b)

2

c)

3

25.

Which of the following is a parasitic segmented worm?

a)

Earthworm

b)

Roundworm

c)

Leech

d)

Tapeworm

26.

A worm's mouth is located at its ___________ end.

a)

posterior

b)

dorsal

c)

bottom

d)

anterior

27.

A worm's anus is located at its __________ end.

a)

anterior

b)

posterior

c)

top

d)

lateral