The answer would be B. Redi and Pasteur
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Answer:
Sediment
Explanation:
Which of these could you find in the benthic zone of a lake? Sediment.
<span>Is immunosuppressed. This means their immune system is not functioning at the full level, and as a result, the weakened strains of viruses within the vaccine could actually make them seriously ill. However there is no real danger of this for those in the general population with functioning immune systems.</span>
<span>The
answer is A. The reduction in variety reduces the number of alleles for
each gene in the gene pool. This reduces the variations in the phenotypes of the crops. A disadvantage of this phenomenon is that it
would be difficult for the crops to withstand
environmental changes and calamities because there is no wide variation on
which natural selection could act upon to
enable the crops to adapt to these changes.</span>
