Which of the following statements is true about the nature of light?
a. light behaves entirely as a particle
b. light has properties of both particles and waves
c. light behaves entirely as a wave
d. light travels as a wave but does not carry energy

Use the empirical rule. the mean speed of a sample of vehicles along a stretch of highway is 70 miles per hour, with a standard deviation of 4 miles per hour. estimate the percent of vehicles whose speeds are between 66 miles per hour and 74 miles per hour. (assume the data set has a bell-shaped distribution.)

Describe the function of the endomembrane system? what organelles are involved?

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.