Invertebrates Review

What does invertebrate mean?

• Animals without a backbone

• Animals that change their form

• Animals with a backbone

• Animals that lay eggs

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

• Mollusk
• Arthropod
• Echinoderm
• Cnidarian

Tags

NGSS.MS-LS4-2

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 absorb nutrients and oxygen.

• true

• false

T1 - The plankton that are microscopic and plant like are called 

• zooplankton 
• phytoplankton 
• minnows

T1 - The plankton that are animal-like are called

• bacteria 
• phytoplankton 
• zooplankton 

What type of symmetry do sponges (Porifera) have?

• asymmetrical
• radial
• bilateral 
• medial

The elastic fibrous protein found in sponges is called .....

• mesohyl
• spicules
• spongin
• tissue

Choanocytes are also known as _____.

• epithelial cells
• amoeboid cells
• collar cells
• pore cells

This picture is an example of which group of invertebrates?

• Segmented worms
• Fish
• Sponges
• Arthropods