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Phylum Cnidaria & Ctenophora Lesson

Phylum Cnidaria & Ctenophora Lesson

Assessment

Presentation

•

Biology

•

9th - 12th Grade

•

Medium

•
NGSS
MS-LS4-2, MS-LS4-4, MS-LS3-2

+2

Standards-aligned

Created by

Bailee Conner

Used 2+ times

FREE Resource

39 Slides • 26 Questions

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Multiple Choice

What is the jellylike material that separates the endoderm and ectoderm?
1
mesoderm
2
cytoplasm
3
mesoglea
4
cytosol

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Multiple Choice

Which of the following is a correct description of the Cnidarian digestive tract?

1

A complete digestive tract consisting of two openings.

2

A complete digestive tract consisting of one opening.

3

An incomplete digestive tract consisting of two openings.

4

An incomplete digestive tract consisting of one opening.

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Multiple Choice

The central nervous system of cnidarians includes a brain.
1
true
2
false

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Multiple Choice

Which of the following is a correct description of the polyp body form?

1

It is sessile and the tentacles and mouth point downward.

2

It is sessile and the mouth and tentacles point upward.

3

It is mobile and the tentacles and mouth point downward.

4

It is mobile and the tentacles and mouth point upward.

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Multiple Choice

What are the organelles inside the cnidaria stinging cells that inject paralyzing toxins into their prey?

1

pinacocytes

2

lysomatocyts

3

choanocytes

4

nematocysts

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Multiple Choice

What do jellyfish eat?

1

Fish, shrimp, crabs and tiny plants because they'll eat anything they can

2

Fish, shrimp, and crabs because they're small enough to catch

3

Tiny plants, algae, and kelp because they're herbivores

4

Zooplankton because it is small enough to swallow without chewing

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Multiple Choice

Which body form do members of Class Scyphozoa have?
1
medusa
2
polyp
3
polyp and medusa

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Multiple Choice

The animals with poison more potent than that of a cobra are the __________.

1

box jellies

2

true jellies

3

corals

4

Portuguese Man-o-wars

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Multiple Choice

In Class Hydrozoa, you would find the hydra, obelia, and the
1
Aurelia
2
sea anemone
3
Portuguese man-of-war
4
coral

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Multiple Choice

The "flower animals" include sea anemones and __________.

1

box jellies

2

true jellies

3

corals

4

Portuguese Man-o-wars

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Multiple Choice

What animals are NOT included in Phylum Cnidaria?

1

jellyfish

2

anemones

3

squids

4

corals

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Multiple Choice

Which of the following BEST describes jellyfish anatomy?

1

They have no hearts, brains, or eyes. There is a set of nerves above their tentacles that give them basic senses.

2

They are one of the first animals with cephalization, meaning they have a cluster of nerves above their tentacles that act as a brain

3

They have no hearts or brains, only tentacles and a pair of eyes that see in the infrared spectrum of light

4

They have complex brains, nerves, and digestive systems, just like their close relatives squids

48

Multiple Choice

What are jellyfish MOSTLY made of?

1

Mostly water, about 60%

2

Mostly water, about 95%

3

Mostly jelly-like substance, about 95%

4

Mostly jelly-like substance, about 60%

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Multiple Choice

The cnidarian nervous system is composed of:
1
a simple brain
2
nerve clusters
3
a nerve net
4
nothing

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Multiple Choice

Organisms with two different body forms exhibit:
1
dimorphism
2
bimorphism
3
dioecious
4
bioecious

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Multiple Choice

Cnidarians can reproduce...

1

sexually only

2

asexually only

3

both sexually and asexually

4

neither sexually or asexually

52

Multiple Choice

How do jellyfish catch prey?

1

Their tentacles paralyze their prey before dragging the prey into the mouth at the center of its body

2

They use their tentacles to constrict and suffocate their prey before dragging the prey into the mouth at the center of its body

3

Their tentacles paralyze their prey and break it down into mush that they drink with the sea water because they cannot chew

4

They use their sharp claws to attack their prey before dragging the prey into the mouth at the center of its body

53

Multiple Choice

Phylum Cnidaria is known as 
1
"stinging cells"
2
"Tentacles"
3
"Cleaners"
4
"Sponges"

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Match

Match the following organism with their class name.

Hydrazoa

Anthozoa

Scyphozoa

Cubozoa

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Multiple Choice

True or False: Some comb jellies have been known to be invasive.

1

True

2

False

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Multiple Choice

Question image

Phylum Ctenophora include:

1

All jellies

2

Box jellies

3

Comb jellies

4

Simple worms

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Multiple Choice

Question image

Ctenophores differ from jellies by:

1

having stinging cells.

2

having the ability to grow larger than most fish.

3

being colorless.

4

using cilia for movement.

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Multiple Choice

What is different about the digestive system in comb jellies versus regular jellies?

1

There is no difference

2

Jellyfish have a complete gut while comb jellies do not

3

Comb jellies have two openings while jellyfish have one

4

The gut of jellyfish extends their whole body but comb jellies only have a gastrovascular cavity

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Multiple Choice

What is a characteristic feature of Ctenaphora?

1

Bilateral symmetry

2

Tube feet

3

Nematocysts

4

Chiton exoskeleton

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Multiple Choice

The group that displays luminescence in the dark is Phylum __________.

1

Cnidaria

2

Ctenophora

3

Nemertea

4

Platyhelminthes

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Multiple Choice

What is the name of the sticky cells that cover the comb jellies?

1
nematocysts
2
cnidocytes
3
colloblasts
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