Sponges, Cnidarian, and Ctenophore

Which organism belongs to the Phylum Porifera?

• Comb Jelly

• Coral

• Sponge

• Jelly Fish

The members of the phylum ___ are characterized by radial symmetry, have a gastrovascular cavity and have cnidocytes.

• Porifera

• Cnidaria

• Ctenophora

• Placozoa

Tags

NGSS.MS-LS4-2

In sponges, of the sycon body form, choanocytes line the ___.

• Incurrent Canals

• Spongocoel

• Radial canals

• Gastrocoel

Tags

NGSS.MS-LS1-3

Asexual reproduction of freshwater, and some marine sponges involves the formation of resistant capsule called ___.

• Brown bodies

• Larvae

• Stratoblasts

• Gemmules

Tags

NGSS.MS-LS3-2

Cnidarian cells called ___ have barbed nematocysts that capture prey and inject neurotoxins.

• Cnidocytes

• Choanocytes

• Polypocytes

• Gemtocytes

Excretion and gas exchange in sponges is accomplished by ___.

• Active transport

• Simple diffusion

• Contractile vacuoles

• Nephrida

The ___ body form of cnidarians

• Sycon

• Polyp

• Ascon

• Medusa

Cnidarians and Ctenophorans have a simple nervous system called a ___.

• Gangleoid

• Nerve net

• Circular ring

• Ganglia nerve net

The free swimming larval stage of a medusa cnidarians is the ___.

• Planula

• Pilidium

• Trochophore

• Bipinnaria

Members of the phylum ctenophore are called the ___.

• Jelly fish

• Comb jellies

• Water bears

• Polyps

Tags

NGSS.MS-LS4-2