Animal Symmetry, Invertebrates, Sponges

Which characteristic is shared by ALL animals?

• Their bodies have many cells.

• They eat autotrophs.

• They are mobile.

• They have skeletons.

The four characteristics of all animals are

• multicellular, prokaryotic, sexual, autotrophic

• heterotrophic, asexual, eukaryotic, unicellular

• multicellular, heterotrophic, sexual, eukaryotic

• multicellular, autotrophic, sexual, eukaryotic

What is true of ALL invertebrates?

• They live in colonies.

• They filter feed to obtain nutrients.

• They are usually very large.

• They lack a backbone.

Sponges belong to which phylum?

• Animalia

• Porifera

• Cnidaria

• Protista

Attached to a surface, unable to move is the definition of

• Porifera

• Hermaphrodite

• Sessile

• Bilateral

Sponges obtain nutrients and ________ from the water.

• oxygen

• DNA

• larvae

• symmetry

Sponges have which type of symmetry?

• asymmetry

• bilateral symmetry

• radial symmetry

• trilateral symmetry

The main opening through which water, waste, and sperm exit a sponge

• spicule

• amoebocyte

• flagella

• osculum

Sponges obtain nutrients by

• paralyzing prey and eating them

• budding

• filter feeding

• photosynthesis

How do sponges reproduce?

• Sexually

• Asexually

• Sexually by spawning; asexually by budding

• Asexually by spawning; sexually by budding