Answer:
it will be the answer B. scientists discover new elenents.
All Living Organisms on earth. Plants, Humans, Animals.
A
B is wrong because mitochondria would likely absorb the stain even if it was dead.(And most cells that have been treated are dead anyway). C and D are just throwaway answers, you usually want to avoid the word "always" when drawing conclusions.
Answer:
false
Explanation:
a hormone is not an organ that secretes chemical substances into the bloodstream, hence your answer is false
hope that helps! :)