Sponges

Sponges

By Jennifer Briggs

I will observe the structure & function of sponges

We will examine the characteristics of Phylum Porifera with stress on sponges.

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​Some text here about the topic of discussion.

​Objectives for Today:

Open Ended

Describe a common characteristic of sponges that you noticed in the previous pictures:

Multiple Choice

Which of these is a correct characteristic of Sponges?

• Phylum Cnidaria

• Has a 2-chambered heart

• Phylum Porifera

• Bilateral Symmetry

Multiple Choice

The large opening at the top of most sponges is called the:

• Pore

• Osculum

• Hole

• Foramen

Multiple Choice

Which of these is NOT a characteristic of SPICULES?

• Made of Calcium Carbonate

• Splinter-like

• Can be used as a toothpick

• Unique for each sponge species

Multiple Choice

In collar cells, what is the function of the "flagella"?

• Moves the sponge from place to place

• Traps food

• Circulates & creates water currents

• Adheres the sponge to the bottom

Multiple Choice

Which of these is NOT a collar cell structure?

• Tie

• Flagella

• Cell Body

• Collar

Multiple Choice

What is the function of the "collar" in sponges?

• To look nice

• Circulate water

• To adhere to the ground

• Trap food

Multiple Choice

Waste water leaves the sponge through this large opening:

• Operculum

• Osculum

• Ocular

• Oscillator

Open Ended

Name a characteristic of a Calcareous Sponge

Multiple Choice

Which of these is NOT a characteristic of an Elastic Sponge?

• Often dried and used by people

• No spicules

• Your typical "bath sponge"

• Not for human or commercial use

Multiple Choice

Sponges reproduce....

• Asexually

• Sexually

• Both!

Open Ended

Describe something new that you learned about sponges today: