Answer: Acetylcholine.
Explanation: Acetylcholine is a neurotransmitter that mediates many sinaptic functions in nervous system. When a motor neuron releases acetylcholine at the neuromuscular junction, it binds to nicotinic receptors in muscular fibers and activates a signal cascade that will free intracellular calcium ions, causing the contraction of the muscular fibers.
Answer:
and a single circular DNA molecule.
Answer:
Option D is correct ..........
Answer:
Explanation:
Vaccinations need a large amount of the population to work effectively. With people not getting vaccinated they are putting the majority of the people at risk of an outbreak of that.
A organism can be both a primary/secondary consumer by eating both plants and animals, this makes a animal a omnivore.
