For thousands of years people believed the was the center of the universe?
the sun
mars
the milky way
the earth

People who exercise for an hour may have lower cholesterol levels. is that a statement? a law? or a hypothesis?

Below are the three main organs that make up the plant body. what is the main function of the structure that is identified as b in the picture above? it anchors the plant.it produces food.it absorbs nutrients.it supports the plan

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of