phylum porifera

Question 1

a symbiotic relationship in which both individuals benefit

Answer 1

mutualism

Question 2

within the cell

Answer 2

intracellular

Question 3

groups of archaeocytes that are produced in times of unfavourable environmental conditions

Answer 3

gemmules

Question 4

reproduction requiring only one parent

Answer 4

asexual

Question 5

the process of removing wastes from the body

Answer 5

excretion

Question 6

sponges and coral

Answer 6

porifera

Question 7

body design lacking symmetry

Answer 7

asymmetrical

Question 8

a method of asexual reproduction

Answer 8

budding

Question 9

the process of exchanging gases in the body

Answer 9

respiration

Question 10

a network of flexible fibres in softer sponges

Answer 10

spongin

Question 11

a symbiotic relationship in which only one individual benefits and with no effect on the other

Answer 11

commensalism

Question 12

fertilization of the egg inside the body

Answer 12

internal fertilization

Question 13

organisms that sift food particles from the water

Answer 13

filter feeder

Question 14

a fertilized egg

Answer 14

zygote

Question 15

specialized cells that make the sponges skeleton

Answer 15

archaeocyte

Question 16

the process of moving fluids through the body

Answer 16

circulation

Question 17

mouth first, anus second

Answer 17

protostome

Question 18

spike-shaped structure of calcium carbonate or silica

Answer 18

spicules

Question 19

cells with flagella for creating a current of water

Answer 19

choaohcyte

Question 20

movement of molecules through a medium from areas of high concentration to areas of low concentration

Answer 20

diffusion

Question 21

the opening atop a sponge in which water leaves the sponge

Answer 21

osculum