Biology

Which term describes an extension of an organisms body?

• Chitin

• appendage

• Cuticle

• Exoskeleton

Which arthropod group is extinct?

• Tribloites

• Crustaceans

• Chelicerates

• Myriapods

Tags

NGSS.MS-LS4-1

The main disadvantage of an exoskeleton is that it

• Requires a closed circulatory system

• Allows too much environmental stimuli

• Does not support tissues against gravity

• Cannot grow and alter as the animal does

An Arthropod body parts are segmented into similar sections that

• Perform identical functions among all arthropods

• Are made of cuticle that grows with the animal

• Have each evolved to perform a different functions

• Form a tough biological <ply wood>

Which term describes the process that arthropods use to develop a new exoskeleton?

• Shedding

• Molting

• Reforming

• Growing

What are mandibles?

• hard shells made of protein and chitin

• Club shaped appendages used for crushing prey

• Sensory organs made of modified cuticle

• Appendages used to crush and bit food before ingestion

Sessile filter feeder wrapped in a heavily calcified shell are known as

• Barnacles

• Crustaceans

• Tongue worms

• Isopods

Which of the following body parts covers a crustaceans cephalothorax?

• Cheliped

• Swimmeret

• Abdomen

• Carapace

Filter feeding crustaceans feed on

• Some types of lobster

• Microscopic crustaceans

• Slow moving crabs

• Barnacles and plankton

Decapods are so called because they have how many legs?

• Four

• Six

• Eight

• Ten