The right answer is A.
The Hardy-Weinberg principle is a theory of population genetics, which postulates that within an (ideal) population, there is a balance of allelic and genotypic frequencies from one generation to the next.
For this equilibrium to be achieved, there must be no evolutionary forces such as mutations, migration, genetic derivatives, natural selection, the founder effect ...
Answer:
North American Countries
In North America, the nations of the United States and Canada own land areas in the Arctic. The only U.S. state containing land within the Arctic Circle is Alaska. In contrast, Canada’s polar regions are quite vast, encompassing about two-fifths of its entire land mass and two-thirds of its total maritime coastline. The historic residents of North America’s polar zones are the Inuits, who have made their livelihoods hunting and fishing in the harsh climate for more than 9,000 years, though many modernly work in oil fields and support villages.
European Countries
The exclusively European nations possessing land north of the Arctic Circle are Norway, Sweden, Finland, Iceland and Denmark. Although Denmark proper doesn’t lie within the polar zone, its largest self-governing overseas administrative division -- Greenland -- does. In addition to a portion of the Norwegian mainland, Norway’s Arctic territories also include the islands of Svalbard and Jan Mayen. Vikings hailing from Norway were the European polar region’s first explorers, establishing a permanent settlement on Iceland in the ninth century and a long-lived settlement in Greenland in the 10th century.
Explanation:
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You are looking at tissue under a microscope. One cell shows half the amount of DNA of some of the other cells. This cell is most likely to be in the G1 phase where the cell has just divided.
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Answer: Wear eye protection, rubber gloves
Handle acid with care and follow CLEAPSS or SSERC guidelines on its use.
Explanation:
Reactions occur when two reactant molecules effectively collide, each having minimum energy and correct orientation. Reactant concentration, the physical state of the reactants, and surface area, temperature, and the presence of a catalyst are the four main factors that affect reaction rate.