Which of these statements about the Ogallala Aquifer is true? A. It has enough water to last 6,000 years.

B. It's beneath the East Coast.

C. It's running out of water.

D. Its water usage is closely regulated.

Ascientist is studying muscle twitches in chicken quadriceps. to activate the muscle, he needs to provide stimulus to the

The most effective way to provide children with safety messages is to

There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. take for example the cells that line the digestive tract. these cells must be frequently replaced because they are constantly eroded by the movement of food through the tract. what mechanism(s) is/are in place to ensure that these cells are exact copies of the mother cell