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Answer:
The correct option is <u>C. The nervous system when the brain regulates the body's breathing and heart rate.</u>
Explanation:
The main function of the respiratory system is to exchange oxygen for carbon dioxide in the body.
The brain controls the rate at which the heart pumps blood. The pumping of the heart supplies oxygenated blood to other parts of the body. Hence, the rate at which heart pumps blood is very important to maintain homeostasis of the respiratory system.
The brain regulates the rate at which a person breathes. This rate is very important to breathe in the right amount of oxygen and to breathe out the right amount of carbon dioxide.
Xylem moves water from roots to the leaves, and phloem moves food from the leaves to the rest of the plant. During transpiration water evaporates from the leaves and draws water from the roots.
Hope this helps , Danielle xo
1. D 2. A 3. C 4. B tell me if I’m right
<h2>
Correct Answer is (C)</h2>
Explanation:
(C) Use of reporter genes
- <em>Reporter gene</em> A quality that is utilized to<em> 'tag' </em>another quality or DNA succession of interest, for example, <em>an promoter</em>
- Expression of the correspondent is handily observed, and allows the function or whereabouts of the<em> 'target' sequence</em> to be tracked.It have a two type of reporter gene such as scorable reporter gene and selector gene
- Scorable reporter gene - The gene have expression of this result in quantifiable phenotype and easily detected through highly<em> sensitive enzymes assays </em>
- Selector gene- The gene expression<em> resistance to a toxin</em> and selection of tranformants from <em>non tranformants in growth media containing selective agents </em>