Which of the following is only a product of the electron transport chain carbon dioxide
ATP
water
NADH

Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?

If jane has the blood type ab and marries john who has type o blood what are the possible phenotypes of their first kid?

The science for classifying and naming organisms is known as