Invertebrates I Formative

What type of symmetry do cnidarians have

• asymmetrical
• bilateral
• radial

Sponges eat by

• bottom feeding
• filter feeding
• scaveging
• they don't eat

Flatworms support their shape with three tissue layers but don't have any kind of skeleton.

• True

• False

Flatworms and Round worms have bilateral symmetry

• True

• False

Sponges, Jellies, Flatworms and Roundworms all get their oxygen through:

• simple diffusion

• gills

• lungs

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How many openings do Cnidarians have to their Gastrovascular Cavity?

• one

• two

• three

• four

To what Kingdom do these Phyla belong?
Porifera
Cnidaria 
Platyhelmentyes
Nematoda

• Protista
• Fungi
• Plantae
• Animalia

Flatworms and Roundworms both have:

• radial symmetry

• a gastrovascular cavity

• cephalization

A flatworm that produces both egg cells and sperm cells is called a:

• hermaphrodite

• gastrovascular cavity

• parasite

• Nematode

All animals are:

• Unicellular
• Heterotrophic
• Saprobic
• Autotrophic