Answer:
It's the instruction manual for the cell, you know tells it what to do and stuff.
Explanation:
Because secondary sucession has bas soil that is intact still unlike primary sucession which begins with virtually lifless area without soil
Answer:
Not all plants live till old age
Explanation:
Answer:
The binding of acetylcholine to its receptor activates the muscle and causes a muscle contraction. In myasthenia gravis, antibodies (immune proteins produced by the body's immune system) block, alter, or destroy the receptors for acetylcholine at the neuromuscular junction, which prevents the muscle from contracting
