The atmosphere is made up of only gasses and no other forms of matter a. true b. false

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?

Mike has a problem with his testosterone. he is unable to produce enough. which will most likely be affected by his inability to produce testosterone? check all that apply.

If a grape were placed in a hypertonic solution what would happen and why?