The point of contact between a motor neuron and a muscle fiber is call a(an)
the hint i was given was: two word answer. first half of word one refers to nerve; second half or word one refers to muscle. second word: where two things come together, such as two roads.

but i still don't understand, and i can't find the answer in my book.

In german cockroaches, curved wing (cv) is recessive to normal wing (cv+). bill, who is raising cockroaches in his dorm room, finds that the frequency of the gene for curved wings in his cockroach population is 0.6. in his friend joe’s apartment, the frequency of the gene for curved wings is 0.2. one day joe visits bill in his dorm room, and several cockroaches jump out of joe’s hair and join the population in bill’s room. bill estimates that, now, 10% of the cockroaches in his dorm room are individual roaches that jumped out of joe’s hair. what is the new frequency of curved wings among cockroaches in bill’s room? 0.69 0.4 0.5 0.31 0.20

How do you date a sample of rock that you suspect as being one of the earliest on earth

One of the purposes of transcription is to produce a sequence of bases that