The correct answer is B. Hope this helps you.
50% because no matter what, the probability stays the same. It just so happened that all of her children were boys.
The following statement about <span>the structures of axons and muscle cells in order for nerve impulses to stimulate muscle contraction must be true: </span>Axons must have structures that make and secrete molecules, and muscle cells must have receptors that recognize these molecules. The axon conducts electrical impulses (action potentials) away from the nerve cell body.
