(HELP PlZ!!)Why do we use microscopes to study cells? A. Because the details of most cells are very small
B. Because most cells swim very quickly
O
C. Because most cells divide very quickly
D. Because the insides of most cells are very watery

A

Explanation:

Because most cells are too small to be seen by the naked eye, the study of cells has depended heavily on the use of microscopes. ... Thus, the cell achieved its current recognition as the fundamental unit of all living organisms because of observations made with the light microscope.

I would personally choose A. since it makes the most sense to me.

every society, in order to meet the needs of it's people, has to answer three basic questions:

- what should we produce?

- how should we produce it?

- for whom should we produce it?

this questions must be answered in order to, option b, aid in production decisions.

every country can't produce everything, no matter how rich their land is. it may be a matter of technology, resources or geographical conditions. so, these three questions must be resolved in order to get the most of the production of each land.

hope this !

the old way of life was represented by superstition, an angry god, and absolute submission to authority. the thinkers of the age of reason ushered in a new way of thinking. this new way championed the accomplishments of humankind. individuals did not have to accept despair. science and reason could bring happiness and progress. kings did not rule by divine right. they had an obligation to their subjects. europeans pondered the implications for nearly a century. americans put them into practice first.