Cnideria

Which body form is represented by this diagram?

• Mesoglea
• Medusa
• Moses
• Nematocyst

Which of the following is NOT true? 

• Hydras exist only in polyps
• Hydras are not colonial
• Hydras live in fresh water
•  Hydras is short for Hydrozoans

Invertebrates that have stinging cells and take food into a central body cavity.

• echinoderm
• mollusk
• flatworm
• cnidarian

What is wrong with this coral?

• It hasn't been to sunseekers in over a month
• Warming of water made it bleach
• Coral mining caused it to sufficate
• The loss of fish caused it to die

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS1-5

NGSS.MS-LS2-4

This is a ring of tissue found at the base of the tentacles 

• ocelli
• velum
• statocysts
• cnidocytes

What kind of symmetry does a Cnidarian have?  

• No Symmetry 
• Bilateral Symmetry 
• Radial Symmetry 
• Square

What is a defining characteristic between a cnidarian and a ctenophora?

• a)  They have a different symmetry
• b)  cnidarians have stinging cells and ctenophores  don't 
• c)  ctenophores have stinging cells and cnidarians don't
• both a and c

This is  a light-sensitive structure found in many radiate animals.

• statocysts
• nematocysts
• ocelli
• comb plates

Which class is found in Phylum Ctenophora?

• Hydrozoa
• Tentacula
• Anthozoa
• Scyphozoa

These organisms capture food using stinging cells.

• cnidarians
• ctenophores