The element nitrogen has the atomic number 7 and an atomic mass of 14. how many neutrons does an atom of nitrogen contain?

Embryonic stem cells are cells derived from an embryo. these cells can be used to create new tissues for patients suffering from certain illnesses and disorders. which statement best summarizes why the use of embryonic stem cells could be seen as unethical?

Robert wants to know which fertilizer will work the best for his grass. what can he do to explore this inquiry?

Jasmine, at 33 months of age, is able to engage in some self-care behaviors but still has trouble with tasks such as putting on socks. a few months later, she accomplishes this same task relatively easily. the change in abilities is most likely due to