Invertebrate Exam

Marine arthropods have gills vs terrestrial arthropods.

Marine arthropods are larger than terrestrial arthropods

None of the above is correct

Both a & b are correct.

They lure prey in with bio-luminescent chemicals.

They sting and stun prey that come near their pores.

They filter-feed by pumping water through their many chambers.

They trap small bits of food in the cilia near their mouth.

Sponges lack a brain, muscles, nervous system, and appendages

Sponges do not hunt for prey

Sponges are considered to be one of the oldest living organisms

Sponges are sessile (cannot move)

Platyhelminthes

Nematoda

Nemertea

Annelida

a. foot

b. mantle

c. radula

d. shell

a. it produces a calcium rich substance that makes up the shell of the animal

b. it rips and shreds food

c. it provides support and structure to the animal

d. to circulate blood throughout the animal's body

a. they can move more quickly in their environment

b. they can camouflage more easily

c. they can store nutrients that would have been used to produce the shell

d. they can sense danger more effectively

an inner shell that provides support and structure

intelligence

ability to camouflage by changing the color and texture of its skin

strong muscular tentacles

swim away from predators

pry open the shells of other animals

sense the environment around the animal

catch and crush prey