On his visit to the Galapagos Islands, Charles Darwin discovered several species of finches that varied from island to island, which helped him to develop his theory of natural selection.
Answer: This is an example of organizational heirarchy.
Explanation: These biological structures are designed in a way that the whole system consist of different parts serving its own unique purpose, making up a full functional system. It goes from; atoms, molecules,cells, tissues and organs which makes up a system. Digestive system for example is composed of atoms, molecules,cells, tissues and organs that helps to digest amd convert food into energy(ATP).
<span>Cytotoxic t-cell subpopulations are specialized to combat intracellular pathogens, whereas helper t-cell subpopulations are specialized to combat extracellular pathogens.
</span>Cytotoxic t-cell are CD8+ cells. Cytotoxic t-cell uses granzymes to <span>kill </span><span>intracellular bacteria, that lives in the cytosol such as viruses. They identify the pathogen forgein peptids that are bounded to MHC-I on the cell surface.
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cd4+ T helper (Th) cells include Th1, Th2, and Th17 cells. They contribute to aliergic reactions and fighting extracellular parasites.
Answer:
The answer is <em>an</em><em> </em><em>incorrect</em><em> </em><em>hypothesis</em><em> </em><em>means</em><em> </em><em>the</em><em> </em><em>experiment</em><em> </em><em>fail</em><em>.</em><em>.</em><em>.</em><em> </em>
<h2>
<em>WHY</em></h2>
<em>Hypothesis</em><em> </em><em>is</em><em> </em><em>a</em><em> </em><em>tentative</em><em> </em><em>statement</em><em> </em><em>that</em><em> </em><em>relates</em><em> </em><em>the</em><em> </em><em>manipulated</em><em> </em><em>variable</em><em> </em><em>ro</em><em> </em><em>to the</em><em> </em><em>responding</em><em> </em><em>variable</em><em> </em>
(which may be true or false)
<em>Hope</em><em> </em><em>this is</em><em> </em><em>correct and</em><em> </em><em>helpful</em><em> </em>
HAVE A GOOD DAY!
