Compared to atoms of the same element, isotopes have different

a. numbers of neutrons.
b. numbers of electrons.
c. types of subatomic particles.
d. numbers of protons.

When listening the levels of orginization in orginisims from the smallest to most complex , which level is just below organs in complexity

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous

Nkentucky, intoxicating beverages (beer, whiskey, wine, etc.) are involved to some extent in approximately % of collisions fatal to pedestrians.