Cnidarians

What is the name of the jellyfish larva?

• planula
• blastula
• medulla

What level of organization cnidarians have is...

• specialized cells
• tissues
• organs
• organ systems

What type of symmetry do cnidarians have

• asymmetrical
• bilateral
• radial

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

• A complete digestive tract consisting of two openings.
• A complete digestive tract consisting of one opening
• An incomplete digestive tract consisting of two openings.
• An incomplete digestive tract consisting of one opening.

Which of the following is the correct description of the nervous system of Cnidarians?

• individual cellular response
• concentration of nerve cells at one end
• cerebral ganglia connected to a nerve cord
• a nerve net with sense organs for light detection and balance

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

• It is sessile and the tentacles and mouth point downward.
• It is sessile and the mouth and tentacles point upward.
• It is mobile and the tentacles and mouth point downward.
• It is mobile and the tentacles and mouth point upward.

Tags

NGSS.MS-LS4-2

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

• pinacocytes
• lysomatocyts
• choanocytes
• nematocysts

Instead of a brain or central nervous system, jelly fish have what in place to help them respond to the environment.

• Stinging Cells
• Nerve Net
• Internet
• Chloroplast

What form is this organism? (Image 1)

• Polyp
• Medusa

Which Phylum does this animal belong?

• Phylum Porifera

• Phylum Cnidaria