Which are examples of environmental changes that can influence natural selection ? -predators
-availability of water -temperature
-height of legs
-natural disaster
-color of body
-size of body of
-fur
-size of beak

The phlogiston theory in the 17th century attempted to explain burning. the theory stated that combustable objects contained a material called phlogiston, a substance without mass, color, odor, etc. after objects burned, the objects were dephlogistonated and were then in their true form. the phlogiston theory was accepted until the 18th century, when lavoisier proved that combustion requires a gas that has mass. phlogiston is considered a) to be scientific knowledge b) not to be scientific knowledge c) to be proven by scientific method d) to be accepted in the modern scientific community

In what for do plants utilize nitrogen? why do they need nitrogen?

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain