Chapter 34 -2

Question 1

Giant clams are aka?

Answer 1

geoducks (gooey ducks)

Question 2

Characteristics of geoducks?

Answer 2

native to reefs of south pacific
weigh more 200lbs
measure 4 feet
live 100 yrs

Question 3

Characteristics of scallops?

Answer 3

large central adductor muscle for swimming

eyes w/ lens & retina

Question 4

The oyster shell structure consists of?

Answer 4

periostracum (outer, protein layer)
prismatic (middle CaC03 thickest layer)
nacreous (inner “mother of pearl” layer)

Question 5

Between what 2 layers do pearls form?

Answer 5

nacreous & mantle

Question 6

Which is the largest class in phylum mollusca?

Answer 6

Gastropoda

Question 7

Characteristics of Gastropoda?

Answer 7

“belly-footed”
coiled shell on snails (univalve)
poison glands on shell-less slugs

Question 8

What does the class gastropoda have inside?

Answer 8

radula for grazing on plants

torsion in body development

Question 9

snails and slugs reproduce ?

Answer 9

sexually

Question 10

What are the sexual characteristics of slugs?

Answer 10

they deposit sperm via cloaca conjugation
hermaphroditic
cloaca - multipurpose opening for sex cells & excretion