The number of electrons in the outermost shell of an atom determines its reactivity.
I think it’s D vacuoles, I’m not certain but it don’t hurt to try if it’s not that try A
Answer is D.
Waste products from metabolism are carried by the circulation to the kidneys, which filter them out if the blood to be excreted in urine.
Answer:
noun
Explanation:
Tony is a person, place, or thing
I think the answer is C. lower pressure