ARTHROPODS FINAL EXAM

How many species are there in Arthropods?

• more than one million species

• more than one thousand species

• more than ten million species

• more than one hundred thousand species

How is the body of arthropods divided?

• 3 parts: head, thorax, abdomen

• 3 parts: head, body mass, muscular foot

• divided into 7 rings

• divided into 11 segments

How many groups are there in arthropods?

• four

• three

• two

• five

______ are the most varied group of living things.

• Crustaceans

• Myriapods

• Insects

• Arthropods

Arthropod body is covered by a thick ______ that acts like an exoskeleton.

• cuticle

• mantle

• skin

• armor

The head and thorax are joined to form the _______.

• cephalothorax

• appendages

• ocelli

• antennae

Arthropods have ______ symmetry.

• radial

• bilateral

• irregular

• no

Shedding the old exoskeleton and growing a new one is called ________.

• moulting

• oviparous

• metamorphosis

• distinguishable

The front legs of a crab are claws for _______.

• defence

• walking

• eating

• kicking

The spider has two chelicerae for ______.

• eating

• walking

• kicking

• creating webs