We use the scientific method every day. Imagine that your car doesn't start one morning before school. Which of these is a reasonable hypothesis regarding the problem?
A) If I put gas in my car, it will start.
B) I'm going to be late.
C) I should add a quart of oil.
D) I should check whether the lights were left on and drained the battery.
E) I should change the battery or the starter.
A
You might also like to view...
Autotrophs typically obtain their carbon from:
A. C6H12O6. B. ATP. C. CO2. D. CH4. E. CH3OH
Evaluation of the quality of the sputum specimen sent to the laboratory for bacterial culture is best performed by:
a. measuring the amount of mucus found. b. checking for mucus or blood. c. microscopically examining the Gram-stained smear for leukocytes. d. microscopically examining the Gram-stained smear for squamous epi-thelial cells.
Which of the following statements best summarizes the differences between RNA and DNA?
a. RNA is a protein and DNA is a nucleic acid. b. DNA is a polymer and RNA is a monomer. c. DNA comprises the genes, while RNA is a direct participant in the process of protein synthesis. d. RNA is a single-stranded form of DNA. e. DNA is the primary energy currency of all cells.
Which nutrient is synthesized and stored in the liver and muscles of animals and is used as a source of quick energy?
A) Protein B) Fat C) Starch D) Calcium E) Glycogen