Island isolation promotes allopatric speciation. Species are separated by the physical barrier which is in the ocean and islands are being isolated by each other by bodies of water.
There is no gene flow which occurs between the separated species. Living in the distinct island. The species get adopted by the island to the environment.
They then diverge as they separate species.
Answer:
Generally, the temperature of Earth's oceans decreases as you go deeper.
Explanation:
Sunlight as well as the atmosphere may be seen as the prime reasons for the surface of the oceans to be a higher temperature than at deeper depths. The question specifically includes the word <em>generally</em> to allude to the idea that geothermal vents (as well as other features) can result in small sections of the ocean or ocean floor to even be a higher temperature than the surface, even though they are found much deeper.
Answer:
Ammonification
Explanation:
The ammonification is part of the nitrogen cycle. This process occurs when the plants and animals die. The dead plants and animals start to decompose because of the organisms like the fungi and bacteria that manage to decompose them. As they are decomposed, the nitrogen is converted into ammonium by the decomposers. The ammonium is returned into the soil, thus becoming available for the living organisms that can extract it from it, and in that manner continuing the nitrogen cycle.
Explanation:
At one end of a contour the slope of the land will always be steeper than at the other. Thus when plowing parallel runs paralleling any contour the plow furrows soon deviate from a true contour. Rain water in these furrows will thus flow sideways along the falling "contour" line.
Answer:
The star VY Canis Majoris