porifera

Question 1

body symmetry of porifera

Answer 1

asymmetrical

Question 2

coelom of porifera

Answer 2

acoelomate

Question 3

habitat of porifera

Answer 3

aquatic- most in marine, some in freshwater

Question 4

examples of porifera

Answer 4

sycon sponge
Euspongia (bath sponge)
hyalonema

Question 5

phylum with simplest body plan

Answer 5

porifera

Question 6

animals of porifera are referred to as?

Answer 6

sponges

Question 7

porifera animals bear numerous ____ on their body called _____

Answer 7

pores
Ostia

Question 8

what is osculum in porifera sponges

Answer 8

a large aperture through which water is expelled

Question 9

special type of cells in porifera

Answer 9

collar cells

Question 10

why are animals from porifera referred to as sedentary animals?

Answer 10

these animals are always attached to substratum hence they don’t show locomotion
hence they are referred to as sedentary animals

Question 11

what is the body of sponges supported with

Answer 11

with spicules or spongin fibres

Question 12

what are spicules in sponges made up of

Answer 12

calcium carbonate and silica

Question 13

what do sponges feed upon? how?

Answer 13

they feed upon small organisms taken in their body along with water
water is taken in through ostia and given out through oscula

Question 14

a good ability in sponges

Answer 14

regeneration

Question 15

how do sponges reproduce

Answer 15

budding (sexual/asexual)