Sea Sponges					     	Name:
In this activity, you will be answering some questions about the Sea Sponge. Each question will contain either an option of two or four answers. Each answer contains a letter or a number that, if done correctly, will unveil a YouTube link at the bottom of the page. You will need to do some research online to find out some of the answers. Each question is one mark unless stated otherwise.    
1) How long has the Sea Sponge been around?
a) 69 Million Years (5)							
b) 420 Million Years (Y)
c) 580 Million Years (o)
d) 666 Million Years (w)
2) The Sea Sponge has a complex body system.
a) True (D)
b) False (H)
3) What does the Sea Sponge have?
a) Organs (9)
b) Mouth (n)
c) Gut (P)
d) Central Cavity (g)
4) What are the two chemical formulas that make up the Seas Sponge’s skeleton? (2 Marks)
a) CaCo3 or SiO2 (5)
b) Stuff (u)
c) H2SO4 or H20 (M)
d) C12H22O11 or C17H22ClN9O2 (Q)
5) What are the compound names of the two formulas? (2 Marks)
a) Fairy Dust or Red Plastic (X)
b) Sugar or Palauamine (v)
c) Calcium Carbonate or Silicon Dioxide (S)
d) Calcium Carbonate or Silicon Monoxide (9)
6) The sea sponge reproduces through asexual or sexual methods
a) True (J)
b) False (u)
7) Which methods of reproduction apply to Sea Sponges? (2 Marks)
a) Ferengi Mating Dance and Reanimation (8)
b) Gemmules and Budding (Y)
c) Artificial Cloning and H'nemthe Mating Ritual (f) 
d) Fission and Budding (k)

8) Sea sponges evolved from multicellular organisms
a) True (7)
b) False (R) 
9) Can sea sponges survive out of water? 
a) Yes, because they’ve evolved air sacs that can give them the ability to breathe without water for 5 hours (P)
b) No (H)
10) Describe the shape of the Sea Sponge
a) Fat (2)
b) Symmetrical (j)
c) Asymmetrical (A)
d) Nonparallel (V)
11) Which is the INCORRECT method of reproduction for Sea Sponges? (2 Marks)
a) A small bud grows from the Sponge and releases itself. The bud then grows into a new organism with identical DNA to the Sponge it grew from. (m)
b) Sperm is released into the water. The eggs are then fertilized and turn into zygotes. The zygotes are then turned into larvae and leave the sponge. The larvae then lands onto a surface and grows into sponges (B)
c) Any piece of the Sponge breaks off and lands on the surface. The broken piece then slowly regenerates into another Sponge with identical DNA to the Sponge it broke off from. (0)
d) Gemmules are formed to survive harsh conditions in winter or summer. (U) 

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