Invertebrates Review

Which is not a main class within the phylum of mollusca?

• crustacean 
• cephalopod
• gastropod
• bivalve

Dragonflies, stink bugs, and lady bugs are __________.

• insects
• arthropods
• animals
• all of these

I have a soft-body, a hard shell, and live on land and water.  What am I?

• Mollusk
• Arthropod
• Echinoderm
• Cnidarian

What is an invertebrate?

• An animal with a backbone
• a mammal
• An animal without a backbone
• birds

Between 90-95% of all animals on earth can be classified as _____.

• invertebrates
• vertebrates
• reptiles
• mammals

Which of the following is an example of a arthropod?

• squid
• crab
• earth worm
• sea star

Why are sponges classified as animals

• they digest food
• they breathe through gills
• they use legs to move
• they have skeleton

Sponges use pores to 

• move from place to place.
• filter food from the water.
• defend themselves.

Which statement applies to ALL invertebrates?

• They are made of only one cell.
• They have no backbone.
• They reproduce asexually.

What do jellyfish have that sting to help them catch food?

• eyes
• tentacles
• mouths
• backbones