Which characteristic of living organisms is represented by gas exchange in the alveoli? A excretion
B growth
C nutrition
D reproduction

Right anwser gets marked brainliest newton's discovery concerning how fast an object will change speed is the: 1st law 2nd law 3rd law universal gravitation

Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.

How do you determine the percent yield of a chemical reaction