Which of the following muscles have the ability to work without getting tired?i need answers fast!

a: bicep muscles
b: cardiac muscles
c: leg muscles
d: skeletal muscles

Which of the following birds remained ancient looking in the miocene epoch? a. crows b. owls c. grouses d. none of the above

Color blindness is a recessive trait. the gene for color blindness is on the x chromosome. the family tree below shows the trait of color blindness. the only unknown is the mother in the first generation

As a small change in a person's dna can cause a genetic disorder