sponges

Question 1

invertarbraes

Answer 1

do not have backbone/spinal cord

Question 2

Sponges and Intervtebraes

Answer 2

simpliest multicellular intervertabrae

• most are asymertircal
• no tissue or organ

Question 3

oista

Answer 3

• tiny pores that cover sponges

- water flows in/out ( brings nutrients & oxygen- releases waste & carbon dioxide)

Question 4

osculum

Answer 4

where water flows out of

Question 5

channels and chambers

Answer 5

lined with collar cells

Question 6

collar cells

Answer 6

Sticky, specialized cells that have flagellum

Question 7

Flagella

Answer 7

help move water in/out of sponge

Question 8

Spicules

Answer 8

tiny, needle-like splinters

Question 9

Spongin

Answer 9

A mesh of protein

Question 10

what is a sponge skeleton made up of

Answer 10

spongin and spicules

Question 11

reproduction of sponges

Answer 11

asexually AND sexually

Question 12

hermaphroditic

Answer 12

an organism that has both kinds of reproductive organs and can produce both gametes

Question 13

budding

Answer 13

small new sponges grow from the sides of an adult sponge.

Question 14

Asexual reproduction

Answer 14

occurs when an organism makes more of itself without exchanging genetic information with another organism.

Question 15

Encrusting

Answer 15

typically cover the surface of a rock.

Question 16

Free-standing

Answer 16

can grow very large, take on interesting shapes