All of Mollusca Flashcards
1
Q
What time period
A
Early Cambrian
2
Q
What percent of marine life is mollusca
A
23%
3
Q
what are index fossils
A
fossils we use to date other fossils
4
Q
3 body parts
A
head, visceral mass, specialized foot
5
Q
Where is the mantle
A
with the visceral mass
6
Q
Which class doesn’t have a radula
A
bivalvia
7
Q
what are the key characteristics
A
all have an open circulatory system and reproduce sexually
8
Q
what mineral do they make
A
CaCo³
