11. how can scientists use the following pedigree? (1 point)

a. to confirm the principle of independent assortment
b. to confirm the one gene: one protein concept
c. to study the phenomenon of dominance
d. to prove the gene of the trait is located on the x-chromosome

The scientists can use the following pedigree to study the inheritance pattern of a sex-linked trait. So the answer is letter D. The use of a pedigree is to show the genotypes and phenotypes being passed down by generations.

i took a test for bio that had this question and these were the correct answers, not sure if this is any now lol

the nervous system and the muscular system work together.  

sweat reaches the surface of the skin and evaporates into the air.

muscles underneath the skin relax, causing hair on the skin to lay flat.