Metamorphic rock; because a rock that has added heat or pressure is metamorphic because it’s been chemically and physically changed
50% probability that a human sperm cell will carry an X chromosome
There were 16 grasshoppers
The term used to describe an organic cofactor is that this common chemistry allow cells to use a small set of metabolic intermediates to carry chemical groups between different reactions. These group-transfer intermediates are the loosenly-bound organic cofactors, often called coenzymes.
