Which sentence below uses a colon correctly?
A. Thomas Edison said: "I start where the last
man left off."
B. Edison was known for his hard work:
"Everything comes to him who hustles while he
waits."
C. Edison: "Opportunity is missed by most
people because it is dressed in overalls and looks
like work."

Why do mutations in genes affect traits? o a. genes determine what type of mutagens an organism has. o b. genes produce proteins that cause traits. o c. genes affect how many chromosomes an organism has o d. genes code for carbohydrates that influence traits.

Which of the following is the best definition of aerobic respiration? o a. the cellular process that releases energy by breaking down glucose o b. physical activity that involves the repeated motion of large muscle groups o c. physical activity that increases heart rate and breathing rate o d. the cellular process that converts solar energy to chemical energy

What are the student's observations and inferences before he starts his investigation?