No. It was an idea that yielded common positive results. “Not a good theory” is biased terminology. New technology can yield new information, but it does not mean that it was not a good theory.
Answer:
1. physical and chemical barriers
2.non-specific innate response
3. specific adaptive responses
Explanation:
Answer:
The difference of how you feed a mouse like how much it eats each and every hour
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The correct option is B. Which genes are active.
Embryonic differentiation is a developmental process by which embryonic cells give rise to specialized cells and a diverse range of tissue structures. All of this unique cells essentially rise from a type of cells that are known as pluripotent cells.
But how do these pluripotent embryonic stem cells know which cells to differentiate into? This is where genes come into play. The cell has an inherent signalling ability that determines which gene is to be active and expressed. These specifically activated genes then translate into proteins for which it is specific, giving each cell, tissue and organ its particular identity.
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Human influence ecosystem by chopping down forests,and cars burning off greenhouse gases.Humans can effect the ecosystem in a negative way ,by pollution, waste dumping, over hunting of animals,over fishing,industrial gases,energy use and not using
