Zoology Unit 2 Quiz Review

The large opening at the top of the sponge is called the?

• Osculum

• Porocyte

• Spicule

• Spongocoel

What type of symmetry does a sponge have?

• Asymmetry

• Radial symmetry

• Bilateral symmetry

• Poriferan symmetry

The hard "skeleton" structures in a sponge are called?

• Spongin

• Spicules

• Amebocytes

• Pinacocytes

The term for an animal that is attached and not free-swimming is?

• Motile

• Stable

• Sessile

• Moving

What phylum includes sponges?

• Cnidaria

• Porifera

• Chordata

• Echinodermata

Both cnidarians and sponges contain organs.

• True

• False

Which type of cell in cnidarians delivers a painful sting?

• Amoebocytes

• Nematocysts

• Choanocytes

• Flagella

Which body plan does this animal have?

• Polypoid

• Medusoid

Tags

NGSS.MS-LS4-2

Which body plan does this animal have?

• Polypoid

• Medusoid

Tags

NGSS.MS-LS4-2

What type of symmetry do cnidarians have?

• Asymmetry

• Bilateral symmetry

• Radial symmetry

• No symmetry