What component of earth’s atmosphere exists entirely as a result of photosynthesis?

a)oxygen gas

b)water vapor

c)nitrogen gas

d)carbon dioxide gas

Which of the following statements are true chromosomes make up genes

Which statement best describes a typical difference that could be found between the "analysis" and "conclusion" sections of a lab report? a) only the "conclusion" describes errors that occurred during the experiment, and only the "analysis" section suggests further research. b) only the "analysis" section includes specific data comparisons, and only the "conclusion" section suggests further research. c) only the "analysis" section discusses whether the original hypothesis was supported, and both sections include graphs of data. d) only the "conclusion section discusses whether the original hypothesis was supported, and both sections suggest further research.(the answer is b i just took the test)

Select the correct answer from each drop-down menu proteins are