Sponges

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

They outer layer of a sponge is made of flattened cells called ______

• porocytes
• pinacocytes
• choanocytes
• amoebocytes

The spongin and spicules make up what in sponges?

• digestive tract
• skin
• stomach
• skeleton

Water enters sponges through the ______.

• ostia/ostium
• oscula/osculum

What skeleton type?

• Asconoid
• Leuconoid
• Syconoid

Tags

NGSS.MS-LS4-2

The flat cells on the outside of a sponge are:

• choanocyte

• amoeboid cell

• spicule

• pinacocyte

Structure I, where water is pumped out, is the

• choanocyte

• osculum

• mesohyl

• pore

Tags

NGSS.MS-LS1-2

Sponges belong to which group of animals?

• Vertebrates
• Invertebrates

Most sponges are hermaphrodites.  What does this mean?

• sponges can produce their own food
• sponges can produce both eggs and sperm
• sponges cannot reproduce
• sponges can swim around

Tags

NGSS.MS-LS3-2