Aheterogeneous mixture is a

a. component added to sand that makes it inseparable.
b. mixture in which its components can't be separated.
c. mixture in which its components retain their identity.
d. mixture that always contains water.

What important race leader of the early twentieth century is being described?

Which of the following is an example of how the principle of beneficence can be applied to a study employing human subjects? providing detailed information about the study and obtaining the subject's consent to participate. ensuring that the selection of subjects includes people from all segments of the population. ensuring that persons with diminished autonomy are protected. determining that the study has a maximization of benefits and a minimization of risks.

How many states were there when the constitution was written?