Arthropod Video Lesson

Which animal are you NOT going to see in this video?

• lobster

• crab

• sea jellies

Which phylum has the largest diversity?

• plants

• arthropods

• sponges

True or False: The arthropod exoskeleton is its shell

• true

• false

Arthropods must molt because ....

• Their exoskeleton does not grow as its internal body grows

• Their exoskeleton gets too heavy

• They use it to confuse predators

True/False: Arthropods will eat their old skeleton as a source of calcium for the new skeleton

• true

• false

Which best explains why jointed appendages are needed in arthropods?

• They need to grab things

• The rigid body makes it harder to move around without them

• So they use less energy when eating

True/False: There are only two types (or sub-phylum) of Arthropods.

• true

• false

The arthropod barnacles are...

• predators

• filter feeders

• autotrophs

True/False: A horseshoe crab would be in the same sub-phylum as all the other crabs.

• true

• false

Most arthropods carry their eggs until they hatch. Which type of offspring development is this?

• oviparous

• broadcast spawning

• ovoviviparous