Organisms must have variation within a population in order for natural selection to occur.

Which situation is an example of this variation?

The yearly rainfall in the rainforest is between 50 - 260 inches? id weather or climate

A ball hits a wall. What is true about the magnitude of the force experienced by the ball compared with the force experienced by the wall? OA. The ball experiences more force than the wall. OB. The ball experiences less force than the wall.

How much pure gold (24/24) is to be added to 15.0 grams of 14 K gold (14/24) to obtain 18 K gold (18/24) ?

A certain string can withstand a maximum tension of 39. N without breaking. A child ties a 0.43 kg stone to one end and, holding the other end, whirls the stone in a vertical circle of radius 0.

Does the uphill or downhill direction matter to the speed of the marble, or is the height the only contributing variable? A. Uphill is fastest B. Downhill is fastest C. Height is the only contributing variable. D. None of these factors affect speed.

If you have a beam perfectly balanced on a fulcrum and put a weight at the very end of one side, is there a way to know where you should put a heavier object on the other end?

Most of the Earth's volcanoes occuWhen fossils or minerals form, certain unstable elements are sometimes locked into them.

a man is standing on the edge of a 20.0m high cliff. he throws a rock vertically with an initial velocity of 10.0m/s. how high does the rock go?

The slope of a velocity time graph over any interval of time gives the during that interval

if light travels in a vacuum at 3.00 x 10^8m/s and its frequency is 7.44 x 10^7 what is its wavelength