Which of the following is not a physical factor that affects ventilation?

A.
size of the alveoli

B.
thoracic wall compliance

C.
size of the airway

D.
contraction and relaxation of muscle fibers

Which property is used to identify the origin of an igneous rock? color density hardness crystal size

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)

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.