What types of organisms have a notochord, a nerve cord, and throat pouches at some point in their lives?

• chordate
• invertebrate
• mollusk
• insect

What type of chordate also has a backbone made of vertebrae?

• mollusk
• vertebrate
• insect
• cnidarian

Which of these is NOT an example of a vertebrate?

• fish
• jellyfish
• bird
• reptile

Which one of these is a chordate, but NOT a vertebrate?

• lancelet
• hummingbird
• lion
• frog

Which of these structures is the flexible rod that supports the chordate's back?

• nerve cord
• throat pouches
• backbone
• notochord

Which of these is a cord of nerves that runs down the back of chordates? In complex chordates it connects the brain to the rest of the neurons.

• notochord
• nerve cord
• throat pouches
• backbone

Which of these are the swollen areas on the neck of a developing chordate? They may develop into gills or ear and jaw structures.

• notochord
• nerve cord
• throat pouches
• backbone

What structure replaces the notochord in vertebrates?

• backbone
• throat
• heart
• lungs

What is the name for the soft pads of tissue found between vertebrae?

• bone cushions
• spine pillows
• intervertebral disc
• chordate pancakes

What is the name for the bones that make up the backbone?

• vertebrae
• stackable bones
• spine bones
• notobones