A scientist wants to change the sequence of nitrogen bases in a DNA strand. Which of the following should the scientists do? 1.Add in more phosphates to the DNA
2. Change the order of nucleotides
3.change number of hydrogen bases
4. Remove some of the sugars

d) center of the mid-ocean ridge

give brainleysest

sinserly,

steckh986

yes it is   dangerous

explanation:

because that foot is discusting and could get you sick

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )

well the answer is 2!