The skin consists of a superficial _________ and a underlying _________.

_________prevents excessive dryness and keeps skin soft and pliable.

The simplest structures in which the processes of life occur are _________.

The integumentary system includes the _________.

The upper and lower limbs compose the _________portion of the body.

Mitosis produces _________ daughter cells that are genetically _________ the parent cell.

Two positive point charges Q and 2Q are separated by a distance R.  If the charge Q experiences a force of magnitude F when the separation is R, what is the magnitude of the force on the charge 2Q when the separation is 2R?

A doctor is interested in the proportion Americans that get at least 3 hours of exercise per week. The doctor randomly selects 80 Americans and asks them how much exercise they get per week. 32 of those sampled exercised at least 3 hours per week.   a. The population is [a]. b. The sample is [b]. c. Is this an observational study or a designed experiment? [c]

A dentist claims less than 35% of Americans floss daily. To test this, the dentist randomly samples 250 Americans and found that 74 flossed daily. Use a 5% level of significance to test the researcher’s claim. (Round to 3 decimal places as needed)   a. Calculate the value of the test statistic [a] b. Calculate the p-value [b]

The following table gives data from 100 American adults. They were asked their age and if they smoke. < 40 years old ≥ 40 years old Smoker 16 35 Nonsmoker 27 22 (Round to three decimal places as needed.)   a. Find the probability that a randomly selected adult is a nonsmoker and < 40 years old. [a] b. Find the probability that a randomly selected adult is a nonsmoker or < 40 years old. [b] c. Find the probability that a randomly selected adult is a nonsmoker, given they are < 40 years old. [c]