What adaptations enabled plants to survive on land?

The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes

Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt

14. which of the following codons code for threonine? a. ucg b. ugu c. cga d. aca