Wild-type strains of a yeast species can grow on a medium of glucose, minerals, and niacin. Many strains that have been subjected to X rays cannot grow on this medium (call it medium Q) unless other substances are added to it. Medium Q is thus a(n) medium.

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water

Been sitting here trying to take this test and don't know this answer! place the events of a feedback mechanism associated with body temperature in the correct order. ·nerve cells send message from skin to the brain ·body returned to normal temperature around 98.6 degrees f ·temperatures regulation center in the brain sends out signals ·body temperature exceeds 98.6 degrees f ·sweat glands throughout the body activate to cool off skin surface it is a 1 through 5 question in biology!