3. Scientists have used earthquake data to conclude that the asthenosphere is made up of semisolid material. Would the model you developed in Part 2 work with a solid material instead of a liquid? Explain your reasoning. (5 points)

b. the carbon cycle ensures living things have a source of hydrogen

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.