Molluscs

Question 1

Muscular, sense organ and brain

Answer 1

Head-foot

Question 2

Contains internal organs

Answer 2

Visceral Mass

Question 3

Dorsal body, covers visceral mass, pertrudes in flaps

Answer 3

Mantle

Question 4

Feeding organ

Answer 4

Radula

Question 5

What is the Radula made of?

Answer 5

Chiton

Question 6

Shell twisting

Answer 6

Torsion

Question 7

Opening of the shell

Answer 7

apeture

Question 8

Right side of shell

Answer 8

Dextral

Question 9

Left side of shell

Answer 9

Sinistral

Question 10

Outermost layer of the shell or “skin”

Answer 10

Periostracum

Question 11

Middle layer of the shell made of calcite or aragonite

Answer 11

Prismatic layer

Question 12

Secreted by epithelial cells of the mantle “Mother of pearl”

Answer 12

nacreous layer

Question 13

highest part of the shell

Answer 13

umbo

Question 14

secreted mucus that entangles suspended food

Answer 14

labial palps

Question 15

Main muscle system in the rear

Answer 15

Posterior adductor muscle

Question 16

Front main muscle system

Answer 16

Anterior adductor muscle

Question 17

Water flows in

Answer 17

Incurrent aperture siphon

Question 18

Water flows out

Answer 18

Excurrent aperture siphon

Question 19

Extends beyond the arms with suckers only at the end

Answer 19

Tentacle

Question 20

Body part mostly full of suckers

Answer 20

Arms

Question 21

Suction cups on arms for prey capture and movement

Answer 21

Suction discs