Marine Invertebrates

What are these organisms?

• Sea anemone

• Sea star

• Sea sponge

• Sea urchin

What type of body symmetry do these organisms have?

• asymmetry

• radial

• bilateral

• all of the answer choices are correct

Which phylum are these organisms classified under?

• cnidaria

• echinodermata

• ctenophora

• cephalopoda

Tags

NGSS.MS-LS4-2

Which phylum contains a combination of free-living and parasitic worms?

• arthropoda

• porifera

• platyhelminthes

• mollusca

Tags

NGSS.MS-LS4-2

Which phylum consists of organisms with "spiny skin"?

• mollusca

• echinodermata

• porifera

• annelida

Tags

NGSS.MS-LS4-2

What are the specialized pigment cells found in cephalopods that help them blend into their surroundings?

• mimicry

• bioluminescence

• nematocysts

• chromatophores

Tags

NGSS.MS-LS4-4

Arthropods undergo a process of shedding their exoskeleton in order to grow. This is known as

• molting

• chitin

• mimicry

• bioluminescence

What does a sea cucumber do when threatened?

• remains cool as a cucumber

• waves its tentacles around to call for help

• expels its toxic guts out

• releases nematocysts to sting whatever is threatening it

Tags

NGSS.MS-LS4-4

How would you classify a sea jelly?

• cnidarian - ctenophore

• cnidarian - medusa

• cnidarian - poly

• cnidarian - cnidocyte

Classification system (starting from the largest group)

• phylum, kingdom, class, order, family, genus, species

• kingdom, class, phylum, order, family, genus, species

• kingdom, phylum, class, order, family, genus, species

• kingdom, phylum, class, family, order, genus, species

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2