HELP What happens to water when it warms above 4 °C? (4 points)
It contracts.
It forms ice.
Its density decreases.
Its composition changes.

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.

Which of the following human activities resulted in the growth of the north american deer population?

Which of the following happened during the precambrian era? the first prokaryotic cells the first eukaryotic cells development of photosynthesis all of the above