Porifera, simple animals Douglas 2021 MHS

Porifera, simple animals Douglas 2021 MHS

Multiple Select

Porifera are animals because they have which characteristics?

• multicellular eukaryotic cells

• heterotoph

• grow/change

• have a cell wall

• sessile

Multiple Select

porifera are animals which

• have pores or holes

• make their own food

• filter feed on plankton

• swim

Pinacocyte are the epithelial cells of the sponge: Skin like. They give shape to the sponge

Multiple Select

Collar cells are used by the sponge to

• move water

• filter food

• protect the surface

• let water into the cell

Multiple Choice

another name for collar cell is

• choanocyte

• mesenchyme

• pinacocyte

Multiple Choice

amoebocytes are cells able to move through the mesohyl (mesenchyme)

• true

• false

The spongocoel is the inside body of the sponge, it has a lot of little holes called ostia and one

big hole the osculum

Multiple Select

skeletal tissue (connective tissue) in the sponge is either-----------------------or------------------

• cartilage

• spongin

• bone

• spicule

Multiple Choice

ascon

Multiple Choice

sycon

Multiple Choice

leucon

Multiple Choice

sponges can reproduce both sexually and asexually

• true

• false

Multiple Choice

Calcarea are made of

• silica

• calcium carbonate

• spongin

• both silica and spongin

Multiple Choice

Hexactinellida are made of

• silica

• calcium carbonate

• spongin

• both silica and spongin

Multiple Choice

Demospongiae are made of

• silica

• calcium carbonate

• spongin

• both silica and spongin