I think the answer is A but let me know if I'm wrong!

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions

Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what

The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons