Arthropods

The most important characteristic of arthropods is the exoskeleton.

• true

• false

What is the function of the cuticle?

• Allows the retention of water.

• Protects the nails.

• Keeps the body warm.

Unlike other invertebrates, the arthropod circulatory system is open.

• false

• true

Answer explanation

Arthropods have a closed circulatory system.

Arthropods are distinguished for mostly having compound eyes.

• true

• false

Which one of the following are NOT arthropods?

• worms

• spiders

• lobsters

Which one is a characteristic of spiders?

• Poisonous fangs.

• They feed on blood.

• Two eyes.

How are arthropods classified?

• By the differences in their mouth components.

• By their circulatory system.

• By the color of their exoskeleton.

How many segments do insect bodies have?

• 3

• 2

• 6

During the molting period, the arthropod abandons its exoskeleton as it grows in size.

• true

• false

Which one of these is NOT an arthropod?

• leech

• centipede

• scorpion

• grasshopper