Needs a better description, but i am happy to help you if you need it !
The correct answer is C. The birthrate is higher than the death rate.
Explanation
The graph is about the growth of the world population, this shows the population growth of the world, Asia, Africa, Europe, United States, Canada and Greenland, Mexico, Central America, Caribbean Islands, and South America, and Oceania (Australia and nearby islands in the Pacific). This graph covers the time from 1950 to 2050 divided into decades. In the specific case of Africa in 1950 it had a population of close to 300 million people. Subsequently, in 2010 the population of Africa was close to 1 billion people and the projection for the year 2050 is 2 billion people. According to this, it can be concluded that the birth rate is higher than the death rate because the population has a growth trend, which indicates that more people are born than die.
Answer:
The rate at which work is done is known as, power.
Okay. First of all lets discuss what is meant by a positive feed back mechanism. In simplistic terms, this is where the process of adding something will increase what is already happening. So what does Oxytocin do? Well if you are a woman in labor, you are experiencing a lot of pain because the walls of the uterus are contracting (essentially squeezing the baby out). Oxytocin plays the role of simulating more contractions and therefore by make more contractions more Oxytocin is released! its a continual cycle of increasing contractions and increasing the hormone levels to help push out the baby.
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