Invertebrate Phyla

What is an invertebrate?

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

Because sponges cannot move around they are considered ______. 

• sessile
• senile
• sedementary
• spongin

Sponges use pores to 

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

Tags

NGSS.MS-LS2-1

This picture is an example of which group of invertebrates?

• Segmented worms
• Fish
• Sponges
• Arthropods

Sponges belong to which invertebrate phylum?

• Porifera

• Cnidaria

• Ctenophora

• Echinodermata

What type of symmetry do Porifera have?

• asymmetrical
• bilateral
• radial
• exoskeleton

What type of symmetry do cnidarians have

• asymmetrical
• bilateral
• radial
• medial

Which of the following is a correct description of the Cnidarian digestive tract?

• A complete digestive tract consisting of two openings.

• A complete digestive tract consisting of one opening

• A sac-like digestive tract consisting of two openings.

• A sac-like digestive tract consisting of one opening.

I have tentacles with stinging cells and a radial symmetry. I am a sea anemone. Which Phylum do I belong to?

• Arthropod

• Cnidarian

• Echinoderm

• Mollusk

Tags

NGSS.MS-LS4-2

I have a digestive cavity with one opening, and have tentacles.  I am a hydra.

• Echinoderm
• Cnidarian
• Arthropod
• Mollusk