Thousands of years ago, giraffes with short necks were common within giraffe populations. nearly all giraffe populations today have long necks. this difference could be due to

Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.

The necleus of an atom is made up of what subatomic particles?

Which accurately compares concave and convex lenses?