German scientist schleiden and schwann determined that the basic unit and function in the living things is the
a. atom
b. molecule
c. cell
d. nucleus

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

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

What condition is kept close to its set point in osmoregulation? a. body temperature b.platelet count c.blood glucose level d.water balance