Invertebrates Quiz

What characteristic is common to all invertebrates?

• They live only in water.

• They lack a backbone.

• They have an internal skeleton.

• They have feathers.

Which of the following is an example of a mollusk?

• Spider

• Octopus

• Starfish

• Bee

What is the primary function of an exoskeleton in insects?

• To attract mates

• To aid in digestion

• To help them fly

• To protect and support their body

Which group of invertebrates includes jellyfish?

• Annelids

• Echinoderms

• Arachnids

• Cnidarians

What percentage of all animal species on Earth are invertebrates?

• 100%

• 98%

• 75%

• 50%