Classification
Porifera
Cnidaria
Jellyfish
Riddles
100

These types of organisms do not have a backbone.

What are invertebrates?

100

Sponges use this method of feeding.

What is filter feeding?

100

Cnidaria in the polyp form reproduce asexually by this method which produces offspring that is genetically identical to the parent 

What is budding?

100

This compass jellyfish beautifully shows this type of symmetry that cnidarians exhibit.

What is radial symmetry?

100

I am made to absorb, and I can hold liquid even though I’m full of holes. What am I?

What is a sponge?

200

This animal phylum contains animals such as the two seen here.

What is Chordata?

200

This is what the word "porifera" means.

What is "pore-bearing"?

200

This layer is located between the inner and outer tissue layers.

What is the mesoglea?

200

Jellyfish spend most of their life cycle in this body form.

What is medusa?

200

I am always running, but never get tired or hot. What am I?

What is a refrigerator?

300

They may not fit your typical definition of an animal, but animals in this phylum have bilateral symmetry and are made up of many segments.

Annelida

300

This protein supports the sponge's body.

What is collagen?

300

Cnidaria (and porifera) lack these specialized structures, such as a brain, lungs, stomach, etc.

What are organs?

300

You see me once in June, twice in November, but not at all in May. What am I?

What is the letter "e"?
400

Despite its lack of a hard shell, this octopus belongs in the same phylum as snails and scallops.

What is Mollusca?

400

These many-shaped cells give the sponge rigidity and help to identify the sponge.

What are spicules?

400

This part of cnidaria performs similar functions as the stomach and intestines in humans.

What is the gastrovascular cavity?

400

Have you ever heard the story of Goldilocks? When your shoes are off what trait do you share with the animals the girl in the story bothers?

What are bare (bear) feet?

500

This living fossil, first seen 450 million years ago,  doesn't look like its fellow crustaceans (and technically they aren't crustaceans), but turn it over to check out its legs and it definitely belongs in this phylum.

What is Arthropoda?

500

These cells line the inside of the sponge and use their flagella to pump water through the sponge.

What are choanocytes?

500

Cnidaria have this in place of a nervous system that aids in sensing stimuli and coordinating movement.

What is a nerve net?

500

This largest species of jellyfish can exceed the length of a blue whale. 

What is the lion's mane jellyfish?

500

I am light and seem to have no substance at all. But even the strongest person in the world can’t hold me for very long. What am I?

What is breath?

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