Oxygen has an atomic number of 8. the n = 1 energy level has two electrons, and the n = 2 energy level has six electrons. oxygen's valence is

+2,-2,+1,-1

Which of the following is not an example of conflict between related individuals?

What have we learned from fossil evidence about evolution? a) it is an abrupt change. b)the process is observable. c) it takes place during one lifetime only. d)the most complex traits are always selected.

What is the approximate time of death of the body temperature is 29.4 degrees celsius