While fumigating his house for insects, Phil became very nauseous. His vision went blurry as his pupils constricted and he began to have severe muscle spasms throughout his body. He also developed a runny nose and he began to salivate heavily. At the emergency room Phil was given injections of Atropine and Valium. Required:
a. What molecule is cholinesterase inhibiting?
b. What is ACh and where is it found? What is its function at the neuromuscular junction?
c. What is AChE and where is it found? What is its function?
d. What are the steps of excitation?

mammal

explanation:

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.

the principle of segregation describes how pairs of gene variants are separated into reproductive cells. from his data, mendel formulated the principle of segregation. we now know that the segregation of genes occurs during meiosis in eukaryotes, which is a process that produces reproductive cells called gametes.