Pick from:
a). elastin;
b). Epidermis;
c). calcium;
d). fur and fat;
e). marrow;
f). strength;
g). all matter;
h). collagen;
Q: Fact 1: Cartilage is a tough tissue that contains a protein called collagen. Fact 2: Sharks have a cartilage skeleton. Given the two facts above, sharks have as skeleton that contains?
A:
h).