Which of these organic molecules would provide the greatest amount of energy per gram of the substance?
a) lipids
b) proteins
c) carbohydrates
d) nucleic acids

What is the importantence of the carbon and nitretan cycles in the environment

Which process of living things produces water that enters the water cycle

(select all the correct choose each statement that is scientific. - the opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on earth. - the universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. - ocean tides are caused by the uneven gravitational pulls of the moon and sun on different parts of earth. - human life is more valuable than other forms of life on earth because humans are more intelligent than other organisms.