Answer: Your answer is B
Explanation: Because unicellular organism are very simple organisms such as bacteria.
Introduced species can harm our planet because in some regions of the world we are not prepared for their type of species, which can all in all cause damage.
Mr. Turner, my American history teacher, taught us about the U.S. home front during WWII. Enjoy!
Answer: I think Negative?
Explanation:
Answer:
Both neurotransmitters and hormones influence our thoughts and motivations, as well as our ability to learn and concentrate. However, neurotransmitters are short-lived while hormones act for longer periods of time.