What are the characteristics of a healthy cell and a cancer cell?

What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.

In "the man in the water," what was the remarkable occurrence that rosenblatt reported?

Vessels draining the myocardium of the heart, open primarily ,into which chamber?