<span>The evidence that led to this classification was the different sequences in ribosomal RNA in the different organisms. That factual information led to scientists figuring about how long ago different organisms shared the same ancestor.</span>
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The mechanism in a cell's connected section of the membrane that detects chemical signals is i.e. structure labelled B in the diagram. Thus, the correct option is D.
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What are receptors?</h3>
Receptors, which are large proteins that can be found within or outside of cells, are the components of a cell that are in charge of identifying chemical signals.
Whereas plasma membrane junctions interact with surface proteins found inside cells during cell to cell signaling.
Thus, it follows that the structure designated B in the diagram is the one that serves as a chemical signal receptor.
For more information regarding receptors, visit:
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Answer:
hair like structures have a large surface area, which makes absorbing both water and minerals more efficient using osmosis.
The pesticide resistant plants are also called generally as genetically modified plants. These are the breeds in which the genes are altered so as to maximize the yield, become more resistant to diseases and pesticides and many more. Gene gun is a technology of genetic technology which alters the DNA and RN structure of plants and also their structures