| A | B |
|---|
| Which characteristics do all animals have in common? | All animals are multicellular heterotrophs without cell walls., 
|
| What percentage of animals are invertebrates?,
| about 95% |
| What percentage of animals are vertebrates?,
| about 5% |
| What type of symmetry do sponges have?,
| Sponges are usually asymmetrical (without symmetry),
|
| What is the scientific name for the sponge phylum?,
| Porifera,
|
| What type of animals are found in the Porifera phylum?,
| Sponges |
| What does sessile mean?,
| "doesn't move" |
| Marine animals live in the _____. | ocean |
| The outer layer cells in a sponge are for ____. | protection |
| The inner layer of cells in a sponge are for ____. | digestion |
| Sponges are _______ feeders. | filter |
| Which type of cells in a sponge create a current of water to bring in food? | collar cells |
| Collar cells use a _______ create a current of water. | flagellum,
|
| Water and food enter a sponge through tiny pores on the side called _____. | ostia,
|
| Water leaves a sponge through a large pore at the top called the _____. | oscullum,
|
| Sponges have different cells and tissues but no _____. | organs |
| A sponges skeleton is made up of _____. | spicules and spongin,
|
| the little needle-like structures in a sponges skeleton are called ____. | spicules,
|
| The spongy proteins that make up a sponges skeleton are called ____. | spongin,
|
| What does it mean to be a hermaphrodite?,
| Hermaphrodites have both male and female sex parts in the same body,
|
| What can a fertilized sponge egg do that a sponge can't? | Swim around |
Which kingdom does this organism belong to?,  | animal (it's a sponge) |
Which type of symmetry does this animal have?,  ,
| bilateral, ,
|
Which type of symmetry does this animal have?,  ,
| radial, |
Which phylum does this organism belong to?,  ,
| Porifera (sponge phylum), ,
|
