Porifera and Cnidarian quiz

Animals without a backbone are called ______________.

• Invertebrates

• vertebrates

• chordates

All cnidarians have this type of symmetry.

• asymmetry

• bilateral symmetry

• radial symmetry

Members of Phylum Porifera have this type of symmetry.

• Asymmetry

• bilateral symmetry

• radial symmetry

The process of a new organism forming from the joining of an egg and a sperm cell is

• budding

• asexual reproduction

• sexual reproduction

Corals have a symbiotic relationship with

• sea anemones

• clown fish

• algae

• colonies

Sea anemones have a symbiotic relationship with

• algae

• clown fish

• colonies

The structures that provide support for a sponge are called

• Osculums

• spicules

• pores

• collar cells

A relationship where two or more organisms live together and at least one benefits.

• parasitic

• symbiotic

• conjugation

Water leaves a sponge through the

• pores

• collar cells

• osculum

• spicules

The stinging structures found on the tentacles of a cnidarian are called

• spicules

• osculum

• nematocyst

• tentacles