The parasympathetic nervous system <span>conserves energy as it slows down heart rate, increases intestinal and glandular activity, and relaxes the sphincter muscles of the gastrointestinal tract. It gets the nickname "rest and digest" for doing exactly so. Typically most active when sleeping, however is also the explanation for post-prandial fatigue, or being tired after eating (especially a large meal).</span>
Answer:
B) stain only the thicker peptidoglycan cell walls
Explanation:
Gram staining is a technique which was developed by the Hans Christian Gram in 1884 to distinguish the bacterial strains. Based on the colour absorbed and retained by the bacteria, the bacteria are distinguished either as gram-positive or gram-negative.
He used a colour stain- crystal violet which is a positive dye and binds to the cell wall made of peptidoglycan. The crystal violet binds to the cell wall with the help of a mordant called iodine. If this dye retains inside and the cell appears purple then the cell is considered gram-positive else negative.
Thus, Option-B is correct.
Answer:
No
Explanation:
<em>It would be wrong for SpongeBob to conclude that giving flower power fertilizer helps the plant to produce more flowers based on the experimental design.</em>
There are fundamental flaws in the experimental design that could make the conclusion to be wrong:
- <em>The two plants were not subjected to the same conditions</em>
- <em>The sample size is too small </em>
In order to investigate if the flower power fertilizer has the capacity to help the plant to produce more flowers, <u>the two plants used should have been subjected to the same conditions barring only the fertilization application</u>. Whatever difference that is observed in the number of flowers produced can then be attributed to the fertilizer.
Also,<u> the number of plants for each group (with and without fertilizer) is too small to arrive at a reliable conclusion</u>. In scientific investigations, replicating measurements increases the statistical power of the resulting data and raises the reliability of the conclusion.
