Semiconservative replication<span> would produce two copies that each contained one of the original strands and one new strand. Conservative </span>replication<span> would leave the two original template </span>DNA<span> strands together in a double helix and would produce a copy composed of two new strands containing all of the new </span>DNA<span> base pairs.</span>
Upwelling waters occur when the warm water, on the surface of the oceans in the equatorial regions are pushed towards the poles by winds and the denser cold currents on the ocean bottom move up to replace the displaced waters. The denser currents are usually nutrient-filled and are an ideal substrate for growth of phytoplankton as they warm up on the surface. The algae bloom attracts fish and other producers in the sea. The producers consequently attract other carnivorous fish.
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The independent variable is "controlled" or held constant in the control group. A single experiment may include multiple experimental groups, which may all be compared against the control group. The purpose of having a control is to rule out other factors which may influence the results of an experiment.
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Root hair cells are adapted for taking up water and mineral ions by having a large surface area to increase the rate of absorption.
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