Which of the following is true about an atom of iron and an atom of copper?

they have different masses.
both have the same properties.
they have an equal number of protons.
both have different types of sub-atomic particles.

Explain two reasons you think it is important for scientists to search for new ways to treat cancer

Loss of protected health information collected for research should be directly reported to:

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