Porifera

Question 1

The large opening at the top of the sponge where water exits

Answer 1

Spicules

Question 2

A symbiotic relationship in which both individuals benefit

Answer 2

Mutualism

Question 3

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

Answer 3

Gemmules

Question 4

Within the cell

Answer 4

Intracellular

Question 5

Reproduction requiring only one parent

Answer 5

Asexual

Question 6

The process of removing waste products from the body

Answer 6

Excretion

Question 7

Sponges

Answer 7

Porifera

Question 8

Body design, lacking symmetry

Answer 8

Asymmetrical

Question 9

A method of asexual reproduction

Answer 9

Budding

Question 10

The process of exchanging gases in the body

Answer 10

Respiration

Question 11

A network of flexible fibres in soft sponges

Answer 11

Spongin

Question 12

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

Answer 12

Commensalism

Question 13

Fertilization of the egg inside the body

Answer 13

Internal fertilization

Question 14

Fertilization of the egg inside the body

Answer 14

Internal fertilization

Question 15

Organisms that sift food particles from the water

Answer 15

Filterfeeder

Question 16

A fertilized egg

Answer 16

Zygote

Question 17

Specialized cells that make the sponges
skeleton

Answer 17

Archaeocyte

Question 18

The process of moving fluids through the body

Answer 18

Circulation

Question 19

Mouth first anus second

Answer 19

Protostome

Question 20

Spike shaped structure of calcium carbonate or silica

Answer 20

Spicule

Question 21

Cells with flagella for creating a current of water

Answer 21

Choanocytes

Question 22

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

Answer 22

Diffusion

Question 23

The opening atop the sponge in which water leaves the sponge

Answer 23

Osculum

Question 24

An immature developmental stage of an organism

Answer 24

Larva