Answer:
Initial extension ( elongation)
Explanation:
in PCR cycle , there is a third step called as extension (also called as elongation step) which is performed at 72 ° C. In this step taq polymerase will add nucleotides to the primers attached for the extension of template Strand.
Answer:
D: Simple Diffusion
Explanation:
Diffusion is a transport driven by a concentration gradient. Gas molecules move from a place of high concentration to an area of low concentration. Knowing when blood is low in concentration and high in carbon dioxide it goes under gas exchange with air into the lungs.
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We breath in oxygen and out carbon dioxide where plants breath in carbon dioxide and out oxygen. that is how we are alike when it comes to energy and like plants it takes time for us to grow.
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I don't understand ur question. Hmm
Answer:
it protects aquatic life from changes in air temperature
Explanation: