Blood<span> flows to the </span>kidneys through<span> the right and left renal arteries. Inside each </span>kidney<span> these branch into smaller arterioles. The </span>blood<span> is at very high pressure and flows </span>through the arterioles into tiny knot of vessels called the <span>Glomerulus.
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RNA has great capability as a genetic molecule; it once had to carry on hereditary processes on its own. It now seems certain that RNA was the first molecule of heredity, so it evolved all the essential methods for storing and expressing genetic information before DNA came onto the scene.
The answer is the origin
of replication. This is where the replication bubble is formed. Two opposite replication
forks (Y-shaped regions) of DNA are formed when
the double helix is unzipped by DNA helicases. Transcription factors, polymerase III and primer then bind to the region
to begin transcription.
Answer;
B. Speciation
Explanation;
-Speciation is how a new kind of plant or animal species is created. Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics.
-The demands of a different environment or the characteristics of the members of the new group will differentiate the new species from their ancestors.
-An example of speciation is the Galápagos finch. Different species of these birds live on different islands in the Galápagos archipelago, located in the Pacific Ocean off South America. The finches are isolated from one another by the ocean.
A <u>desert</u> receives less than 10 inches, or 25 centimeters, of precipitation a year.
