Shira listed the steps for protein production in cells. 1. A strand of RNA is made. 2. RNA leaves the nucleus. 3. RNA moves to the ribosome. 4. A protein is made. Which step is missing? DNA unzips after step 1. DNA unzips before step 1. DNA is replicated after step 3. DNA is replicated before step 3.​

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

When a neutral charge, comes into contact with a positive charge they repel each other nothing happens the neutral charge becomes negative they attract each other

Suppose water is leaking from a tank through a circular hole of area ah at its bottom. when water leaks through a hole, friction and contraction of the stream near the hole reduce the volume of water leaving the tank per second to cah 2gh , where c (0 < c < 1) is an empirical constant. a tank in the form of a right-circular cone standing on end, vertex down, is leaking water through a circular hole in its bottom. (assume the removed apex of the cone is of negligible height and volume.) (a) suppose the tank is 20 feet high and has radius 8 feet and the circular hole has radius 2 inches. the differential equation governing the height h in feet of water leaking from a tank after t seconds is dh dt = − 5 6h3/2 . if the height of the water is initially 8 feet, how long will it take the tank to empty? (round your answer to two decimal places.)