An onion is made-up of layers, which is separated by a thin skin or
membrane. The cells are easily visible under a high power, compound microscope
and the preparation of a thin section is straightforward.<span> </span>
<span>The correct
procedure for preparing a stained wet mount of onion epidermis are as follows.
First, place a piece of thin onion epidermis on a slide. Second, add one drop
of water and put one edge of a coverslip in the water drop, and then slowly
lower the opposite edge to the water. Third, put one drop of stain at one edge
of the coverslip and put a piece of paper towel at the opposite side of the
coverslip. Lastly, allow the towel to absorb some water so that the stain will
move under the coverslip and view it under a microscope. </span>
Answer:
Explanation: Without gene duplication, mutation of genes would not exist. This would prevent organisms from adapting to their environment, making survival much more difficult if not impossible.
The approach most directly concerned with assessing the relative impact of both nature and nurture on our psychological traits is the humanistic approach.
<h3>What is the humanistic approach?</h3>
The humanistic approach is a model used in psychology to understand personality traits and human behaviors.
The humanistic approach is based on human values, sensations, and feelings which shape our actions and human features.
In conclusion, the approach most directly concerned with assessing the relative impact of both nature and nurture on our psychological traits is the humanistic approach.
Learn more about the humanistic approach here:
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