Animal Phyla

The image shows the northern sea nettle (Chrysaora melanaster). To which phylum does C. melanaster belong?

• Porifera

• Cnidaria

• Platyhelmintha

• Annelida

A locust is an arthropod. For invertebrate groups, which recognition feature is found only in arthropods?

• Bilateral symmetry

• Jointed appendages

• Wings

• Segmented body

An animal has the following characteristics: bilateral symmetry, mouth but no anus, ribbon shape. Which phylum does the animal belong to?

• Mollusca

• Cnidaria

• Annelida

• Platyhelmintha

The image shows an organism belonging to the Kingdom Animalia. What feature does this organism have in common with all members of the phylum chordata?

• Legs and wings

• Mouth but no anus

• Bilateral symmetry

• Chitinous exoskeleton

Which of the organisms A–D, identified by the key, represents a reptile?

• A

• B

• C

• D