How many alleles are there for the four main types of human blood? one two three four

im gonna say 3...

Explanation:

but if im wrong. ill prob edit my answer and say its not. but im PRETTY SURE its right.

EDIT: It is correct! i have done it and got 100 percent on my quiz!

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above

a covalent bond, specfically triple bond