Natural selection refers to the phenomenon by which the species in a population possessing the tendency to get adapted in a condition enhance in numbers in comparison to those who exhibit fewer adaptation capacities over a number of generations.
In other words, it can be stated as the non-random and differential development of distinct genotypes function to sustain favorable variant and to eradicate less favorable variants. Some of the conditions are required for the process of natural selection to take place.
These are heredity, reproduction, variation in individual characters, and variation in the fitness of organisms among the members of the population. If the conditions are met, then the phenomenon of natural selection occurs by default.
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The cold, northern currents then flow in a rotating current system called the North Atlantic subpolar gyre, of which the Labrador Current is the southward flowing component.
OR
The Gulf Stream is an intense, warm ocean current in the western North Atlantic Ocean. It moves north along the coast of Florida and then turns eastward off of North Carolina, flowing northeast across the Atlantic.
Explanation:
Idk if this is right but hopefully it is...
Answer is Tropical.
The climate of a region is determined temperature and precipitation. Actually the climate of Pennsylvania is humid Subtropical climate. It is characterized by high temperatures and evenly distributed precipitation throughout the year. The average temperature for the year is 55.9°F (13.3°C). The warmest month, on average is July and coolest month is January. The average amount of precipitation for the year is 41.5" (1054.1 mm). The month with the most precipitation on average is also July.
Answer:
Lymph nodes swell to protect us from illness if they do not swell non fatal illnesses could spell out death
Explanation: