Select the correct answer.
What is ozone?
A. dissolved oxygen
B. the main catalyst in photosynthesis
C. a type of oxygen
D. a form of calcium carbonate

Aneuron is stimulated with an electric pulse. the action potential is detected at a point 3.70 cm down the axon 0.0052 s later. when the action potential is detected 7.20 cm from the point of stimulation, the time required is 0.0063 s. what is the speed of the electric pulse along the axon? (why are two measurements needed instead of only one? )

Which of these best describes wde by replicating the chromosomes c) the cytoplasm is divided between the two new daughter cells d) the nucleus opens to allow the chromosomes to enter the cytoplasm

What is the name of the type of cell division that occurs in the prokaryotic cell cycle