Which of the following explains why it took so long for the public to accept the negative health effects of smoking? A. People were waiting for counter reasons, and those were presented.

B. Cigarettes were cheaply available and media channels were very inefficient.

C. Scientists had not completely finalized their results, which took 30 years.

D. Cigarette manufacturers were trying hard to bring an alternative into the market.

Select all the correct answers. which statements fail to meet the requirements of a scientific claim? 1 even though evidence indicates that the solar system's planets follow elliptical paths, copernicus's model involving circular orbits is true. 2 the evidence supporting newton's laws of motion was accurate in newton's time, but the universe operates differently today. 3 flowers that reflect the most ultraviolet light are more likely to attract bees and other pollinators than flowers that reflect less ultraviolet light. 4 in the final 100 meters of a 10,000-meter race, an athlete's speed is more strongly related to anaerobic efficiency than to aerobic efficiency.

What re the two main phrases of the cell cycle.

Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature about 37 degrees celsius (98.6 degrees f)? describe what might happened the temperature decreased by 10 degrees celsius.