What functional groups are present on this molecule? check all that apply?

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d. a round-trip ride to school and back

Any sound above what db can cause hearing loss in human beings

The combining form leuk/o means red true or false