What happens to the the energy in a wave as it spreads out the energy doesn’t change
Answer:
"When El Niño occurs every three to seven years, a mass of warm Pacific water that is usually pushed westward by trade winds, <em>surges back eastward toward South America".</em>
Explanation:
Under normal conditions, warm water and air masses move westward, which makes it possible for cold water to ascend in a process known as <u>upwelling</u>. This upwelling occurs in South America´s coasts, providing nutrients from the bottom to the animals, especially fishes -which favors fisheries activities-. Humidity goes straight to the west precipitating in Indochina and North Australia, among other places.
Under <u>El Niño conditions</u>, a tropical stream, that is normally small, acquires strength while the opposite streams debilitate. This <u>avoids warm water to go westward, remaining in South America´s coasts</u>, which produces unusual precipitations in Chile´s coasts -followed by floral bloom in Atacama desert-, and fewer precipitations in Eastsouth Asia and North Australia. Upwelling does not occur, so there is a fishery crisis because nutrients from the bottom do no ascend and fish populations remain equal or smaller.
Answer:
Dark colour.
Explanation:
Dark fur color seems to have the greatest selective advantage because of their hard physical body which occurs due to extreme environmental conditions. The dark colour of mice occurs due to the high intensity of sunlight which increases melanin in their skin. These dark colour mice pass through a very hard and extreme environmental conditions so that's why Dark fur color seems to have the greatest selective advantage.
The right answer to this question is option D. Changes in the response of the hair follicle to dihydrotestosterone
First of all, what is a negative feedback? Well, it's something that happens when there's a lot of something inside your blood, this "something" could be a hormone for example.
But what does the negative feedback do to your system? That's simple, for example, if there's too much of a hormone, your blood will take that into the place where it was made in the first place, and that's how your body will know that you don't need that hormone to be produced anymore, because once that happens, a signal is send to your brain that warns it that that hormone is not needed anymore, then the production stops or slows down.
So, about the question, option D is the right one just because of that, the body is producing a lot of a hormone, in this case it's dihydrotestosterone, and the brain recognized it after this hormone reaches the right point, and then the production slows down.
