Cnidarians

Cnidarians have what type of symmetry?

• Asymmetry

• Radial

• Bilateral

• No symmetry

Jellyfish have what type of body structure

• Medusa

• Polyp

• Hydra

• Branched

________________ are specialized cells that contain nematocysts.

• Medusa

• Polyp

• Anemones

• Cnidocytes

Cnidarians hunt with

• Nematocysts

• Polyps

• Statocysts

• Cnidocytes

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

• True

• False

The stinging barb located in the tentacles of cnidarians are called

• Cnidaria

• Nematocyst

• Mesoglea

• Epidermis

During which stage of a jellyfishes life cycle is it most like an adult sea anemone

• Planula larvae

• Medusa

• Polyp

• Embryo

What is an invertebrate?

• An animal with a backbone
• a mammal
• An animal without a backbone
• birds

Between 90-95% of all animals on earth can be classified as _____.

• invertebrates
• vertebrates
• reptiles
• mammals

I have a digestive cavity with one opening, and tentacles.  I am a hydra. Which group do I belong to?

• Echinoderm

• Cnidarian

• Arthropod

• Mollusk