During a conversation with a friend, you tell him that you recently learned in your biology class that acetylcholine release by a motor neuron triggers an action potential in a muscle fiber, causing it to contract. your friend tells you that he heard that botox injections into facial muscles underlying the skin inhibit contraction of the muscles that cause a particular type of facial wrinkle. he asks how botox does this. what will you tell him

Explanation:

Botulinum toxin (Botox) is a neurotoxic protein produced by the bacterium Clostridium botulinum and related species

Botulinum toxin commonly acts by binding to high-affinity recognition sites on the cholinergic nerve terminals and decreasing the release of acetylcholine, causing a neuromuscular blocking effect. Through this mechanism, muscle movement is inhibited in the area it is injected to.

hi~~

i would say that hybridization occurs frequently in nature, because there are many types of hybrids that have occurred naturally, such as the mule (male donkey + female horse)