PHYLUM ARTHROPOD/ENCHINODERM

Spiders, ticks, scorpions all belong to which subphylum?

• Crustacea

• Chelicerata

• Myriapoda

• Insecta

Which of the following is NOT a characteristic of arthropods?

• Open circulatory system

• Jointed appendages

• Segmented body

• Endoskeleton

The exoskeleton of an arthropod is made of which of the following?

• chitin

• protin

• nacre

• spongin

Which of the following is NOT a function of the exoskeleton.

• Protection

• Prevents water loss

• Attachment of muscles

• Flexibility of movement

Since the exoskeleton limits the growth of arthropods, they have to shed their exoskeletons and form a new one. This is called ____.

• defecating

• molting

• morphing

• excreting

Which of the following does not belong in subphylum Crustacea?

• Crayfish

• Crabs

• Shrimp

• Millipedes

Which of the following correctly describes a crayfish's body regions?

• head, thorax, abdomen

• head, abdomen

• cephalothorax, abdomen

• head, cephalothorax

Which of the following crayfish appendages contain the claws?

• Uropods

• Telson

• Maxillipeds

• Chelipeds

Which of the following crayfish structures is used for gas exchange?

• Malpighian tubules

• Green glands

• Gills

• Book lungs

In which type of environments do arthropods live?

• Marine

• Freshwater

• Land

• All of these