How do molecules and atoms help us understand the observable properties of organisms and nonliving matter?

As a small change in a person's dna can cause a genetic disorder

Two nursing assistants are in line to wash their hands at a hospital after leaving a patient in an isolation room. the first na washes her hands and then uses her hands to turn off the faucet before drying them with a paper towel. the second na turns on the water with her hands and then proceeds to wash and dry her hands with a paper towel. which statement best describes errors demonstrated by the nursing assistants? the first na did not ensure a clean hand-washing environment, and the second na did not properly turn off the water the first na did not properly turn off the water, and the second na did not ensure a clean hand-washing environment. the first na did not properly turn off the water, and the second na did not properly use paper towels. the first na did not properly use paper towels, and the second na did not ensure a clean hand-washing environment.

Which of the following was a social cost associated with the development of the internal combustion engine used in most cars? a. people were able to use their horses for new tasks. b. new jobs were created. c. blacksmiths needed to gain new skills to continue working. d. families were able to travel farther more easily.