<span>An atom that has gained or lost electrons is called an ion</span>
Answer:
As a result of photosynthesis oxygen and sugar
It's depends on the size of molecule. big ones cannot pass the membrane while smaller molecules can.
The answer is A because atp is used to move the cell thingys
Answer:
Neurotransmitter are produced by nervous system while hormones are produced by endocrine glands
Neurotransmitter are secreted in synaptic cleft while hormone are secreted to blood
Neurotransmitter are quick and short in action while hormones are slower and last longer
Similarities, they are both chemical messengers
