Which correctly matches the structure in the leaf to the material it carries to the leaf for photosynthesis? A. veins carry water, chloroplasts take in carbon dioxide, stomata take in solar energy
B. veins carry water, stomata take in carbon dioxide, chloroplasts take in solar energy
C. veins carry sugar, stomata take in oxygen, chloroplasts take in solar energy
D. veins carry water, stomata take in oxygen, chloroplasts take in sugar

How do you date a sample of rock that you suspect as being one of the earliest on earth

Diego conducted an experiment to find out what kind of ball bounces the highest when dropped from a five-foot platform. he used a golf ball, a tennis ball, and a soccer ball. he dropped each ball from the balcony once. diego recorded his observations after each drop. what can diego do to best improve the reliability of his results? a) drop each ball from the platform three more times b) record his observations in more than one unit c) write at least two scientific questions after the experiment is complete d) share his results with other people who have done similar experiments you for the !

Is there any solid scientific evidence that humans have been cloned?