Answer:
The correct answer is A acetylcholine binds to a receptor protein on the motor end plate
Explanation:
The neurotransmitter acetylcholine is released by the motor neuron during the transmission of signals across a neuromuscular junction.
The released acetylcholine then diffuses the synaptic cleft and binds to the receptor protein present on the membrane of muscle fibre.
This ultimately result in the influx of sodium ion inside the muscle cell thereby causing depolarization to generate an action potential.
The answer is the 3rd option because adaptations can be good or bad for the population.
Answer: The bone should become spongy, cartilagenous, and springy.
Is this what you are looking at?
http://images.pcmac.org/SiSFiles/Schools/CA/SMJUHSD/PioneerValleyHigh/Uploads/DocumentsCategories/Documents/Lab%2012.PDF
Physical or mental defects (such as cerebral palsy) can occur
I'm pretty sure we have the same class. And you got your answers mixed up with the question. But the correct answer is D) states whose economies rely on coal, oil, or gas. Good luck.