Allopatric speciation can be defined as the speciation that occurs when the populations of the same species are isolated from one another due to some geological barrier. When the isolated population is put under different selection pressures, it will lead to the evolution of the genetic pool in the isolated population and speciation will occur.
Similarly, geographical isolation from the parent population, genetic drift, and different mutations in the isolated population will lead to speciation. However, if there is continuous gene flow between the isolated and parent population, then the speciation will not occur.
Hence, the correct answer is 'Option C'.
Given what we know about phytoplankton biomass peaks in the polar region of the northern hemisphere, we can confirm that this occurs in the spring.
As the polar regions are tilted away from the sun, days there are short, sometimes these regions even enter month-long periods of darkness. Due to this, sunlight is not always strong enough to penetrate deep into the water.
In the Northern Hemisphere, the phytoplankton biomass peaks in the spring given that during this time the sun is high enough in the sky for sunlight to penetrate deep into the water and provide a food source for the plankton to thrive.
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Resources such as food, water, light, space, shelter and access to mates are all limiting factors. If an organism, group or population does not have enough resources to sustain it, individuals will die through starvation, desiccation and stress, or they will fail to produce offspring.
There is higher average humidity on the Island as compared to the land.
The average relative humidity on a small island in the ocean would be higher than 100 km inland on a continent because there is a huge part of water body present around the Island. There are huge amount of rainfall occurs on the Island as compared to land due to its location.
Water changes into vapors forming a cloud which falls in the form of rainfall upon the Island so we can conclude that there is higher humidity on the Island as compared to the land.
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Secondary waves are also called S waves. As they pass through a material, the material's particles are shaken up and down or from side to side. Secondary waves rock small buildings back and forth as they pass. Secondary waves can travel through rock, but unlike primary waves they cannot travel through liquids or gases.
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