Invertebrate Review #2

What type of symmetry do sponges (Porifera) have?

• asymmetrical
• radial
• bilateral 
• medial

Describes an animal that does not move as an adult

• hermaphrodite
• sessile
• filter feeder
• spongin

Animals bring in or attract food from the surrounding environment are ________

• sessile
• medusas
• filter feeders
• choanocytes

Sponges belong in which phylum?

• Cnidaria
• Porifera
• Chordata
• Arthropoda

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 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

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