Structure and Functions of Invertebrates/Animals

In the bodies of most animals, tissues combine to form

• cells
• organisms
• organ systems
• organs

______________ are invertebrates that have two different body plans-----a polyp and a medusa.

• Sponges
• Cnidarians
• Roundworms
• Flatworms

Cnidarians capture food and defend themselves by

• using a stinging collar
• using collar cells
• budding
• forming a hard skeleton

Animals with backbones called_______________, are all in the same phylum.

• vertebrates
• invertebrates
• phylum
• radial

An immature form of a sponge is a ____________________.

• pupa
• avail
• larva
• lava

True or False:
Roundworms have radial symmetry.

• True
• False

True or False:
The cells of most animals are organized into higher levels of structure, including tissues, organs, and systems.  

• True
• False

True or False:
Sexual Reproduction is the process by which a single organism produces a new organism identical to itself.

• True
• False

Which is correct about sponges?

• They have stinging cells
• They have only one kind of cell
• They reproduce sexually and asexually

A large group of similar animals is called a(an)

• adaptation
• larva
• phylum