Collar cell Ostium Osculum Spicule ? Ostium

What happens at the osculum? Water exits

True or False? Amoebocytes digest food for a sponge. true

What does the phylum name “Porifera” mean? Pore bearing or many pores

C B A D What is B? Choanocyte or collar cell

What is the atrium? Empty space inside a sponge

True or False? Sponges can reproduce both sexually and asexually. true

A choanocyte is also called a … Collar cell

Collar cell Ostium Osculum Spicule ? Choanocyte or collar cell

What does a collar cell do for a sponge? Creates water flow, captures food

True or False? Sponges obtain their energy through photosynthesis.

How do sponges feed? Filter feeding

C B A D What is A? osculum

How do sponges reproduce? Sexually or asexually. Sexually by releasing sperm into the water for another sponge to take in and fertilize an egg.

True or False? Sponges were the first animal. true

What do function do spicules have in sponges? Structural support

C B A D What is C? ostium

What do sponges eat? Plankton and other organic matter

True or False? Sponges have complex tissues and organs.

Which of the following is the class of glass sponges? A. Hexactinellida B. Calcarea C. Demospongiae

How do sponges create water flow through their body?

? Collar cell Ostium Osculum Spicule Body Wall

What is symmetry? Do sponges have it?

True or False? Fertilization of a sponge egg is internal.

Where does water enter a sponge? Ostia or ostium

Where does water exit a sponge? osculum

True or False? When organisms reproduce asexually they create genetically identical offspring. true

What happens at the ostium? Water enters the sponge

C B A D What is D? atrium

What does the word “sessile” mean? Doesn’t move as a adult

True or False? Sponges are hermaphroditic. true

What is the empty cavity inside of a sponge called? atrium

Collar cell Ostium Osculum Spicule spicule ?

True or False? There are no species of sponge that can live in fresh water. false

How do sponges get rid of waste they produce and the oxygen they need?