Answer:
Independent
Explanation:
an independent factor is anything in an experiment that is changed. I hope this is what you were looking for.
Answer:
I think the answer is your friend level of stress
Answer:
D. norepinephrine- botulism
Explanation:
Botulism does not effect the neurotransmitter 'norepinephrine'. Rather, botulism occurs due to toxic consequences on the neurotransmitter 'acetylcholine'. Acetylcholine is produced by the motor neurons so that the muscles can operate properly. Botulism blocks the discharge of this neurotransmitter, acetylcholine, not the neurotransmitter, 'norepinephrine'.
Botulism occurs due to the production of a very harmful neurotoxin, Botulinum, which is made by the bacteria. The inhibition of acetylcholine which occurs due to this harmful toxin causes paralysis.
Microorganisms are too small for us to see directly, so we have to use a microscope to see them.