Answer:
The correct statment would be: "the hormons of the endocrine system exert their action by lock and key mechanism."
Explanation:
The endoncrine system is responsable of the release of hormons under certain conditions, and in different organs, they go trough the bloodstream. The lock and key mechanism is explained as how the receptors block or release hormonos or instead they don´t. The endocrine system is responsable for the reproductive system, and regulates metabolic processes.
Answer:
From the Mississippi River in the east to the Rocky Mountains in the west.
Explanation:
This question is about "1984" by George Orwell
Answer:
He finds and finds the death of his sister and mother attractive, but does not find it attractive that he likes it.
Explanation:
Winston is a very pessimistic character, although rebellious and revolutionary, he has a certain fascination for death, as something that will catch everyone and that must be violent and suffering, often that thought invades him around himself.
One night he dreams about the death of his sister and his mother, he feels that this is very attractive and in a way comforts him, because it makes him feel something and realize that he is alive and that he is a human being capable of feeling. The problem is that what he feels is guilt and remorse for finding the death of his mother and sister attractive and good.
Answer:
B (Both countries have an economy based mainly on manufacturing.)
Explanation:
Nigeria is known as the giant of Africa and South Africa is the 2nd biggest.
The both countries are known for it's manufacturing, cultural and sports. There is one form of rivalry or the other going on between Nigeria and South Africa. In economic, sports or culture, Nigeria and South Africa always compete for that.