Arthropods Quiz

What is the defining characteristic of arthropods?

• Segmented body

• Jointed legs

• Hard exoskeleton

• Bilaterally symmetrical

What is an appendage in arthropods?

• A specialized body region

• An external body part

• A jointed leg

• A sensory organ

What is the function of joints in arthropod appendages?

• To improve locomotion

• To increase body size

• To enhance sensory perception

• To provide flexibility

What is the most species-diverse phylum?

• Arthropoda

• Chordata

• Annelida

• Mollusca

Approximately how many recorded species of arthropods are there?

• 100,000

• 10,000

• 1,000,000

• 1,000

What percentage of all animals do arthropods make up?

• 80%

• 10%

• 30%

• 50%

Which of the following is not an arthropod?

• Millipede

• Crustacean

• Mollusk

• Spider

What is the purpose of an exoskeleton in arthropods?

• Muscle attachment

• All of the above

• Prevention of desiccation

• Protection

What is the outermost layer of the exoskeleton called?

• Procuticle

• Epicuticle

• Chitin

• Sclerotization

What is the process called when arthropods shed their exoskeleton?

• Molting

• Tagmatization

• Metamorphosis

• Sclerotization