Poriferan key words

Question 1

Define amebocyte (archeocyte)

Answer 1

A totipotent cell that fills the gemmule and play various roles in the spong

Question 2

Define the choanoderm

Answer 2

the cell layer on which all the choanocytes reside

Question 3

Define dioecious

Answer 3

having female and male reproductive organs in separate individuals

Question 4

Define mesohyl

Answer 4

Space between the pinacoderm and choanoderm

Question 5

Define metazoa

Answer 5

Another name for the kingdom animalia, composed of multicellular, eukaryotic organisms

Question 6

Define osculum

Answer 6

a large aperture in a sponge through which water is expelled.

Question 7

this group is “almost animals”

Answer 7

parazoa

Question 8

Define pinacocyte

Answer 8

flat cell found on the outermost layer

Question 9

Pinacoderm

Answer 9

Outer layer in sponges

Question 10

Define porocyte

Answer 10

tubular cells which make up the pores of a sponge known as ostia.

Question 11

Define radial canals

Answer 11

one of the numerous minute canals lined with choanocytes (found in synconoid sponges)

Question 12

Define sclerocytes

Answer 12

cells that manufacture spicules

Question 13

Define spongocoel

Answer 13

Large central cavity in asconoid and syconoid sponges`