Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results.
Ur welcome
- Place the scanning objective above the specimen by clicking it into place.
- To move the stage all the way up, use the coarse adjustment knob.
- Use the fine adjustment knob to focus the specimen.
- To improve contrast, adjust the iris diaphragm and/or the light control knob.
- Move a given structure to the center of your field of view using the mechanical stage controls.
<h3>What is epithelial cells ?</h3>
Epithelial cells are the cells that cover the inside and outside of your body's surfaces. They can be located on your skin, blood vessels, and organs such as your urinary tract.
<h3>What does it mean if my epithelial cells are high?</h3>
If urinalysis findings show a moderate or high number of epithelial cells, it may indicate the following medical conditions: Kidney illness Liver disease Yeast infections Urinary tract infections Certain kinds of cancer.
To know more about Yeast visit :
brainly.com/question/14117480
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Oxygen will diffuse from an area of higher concentration (outside the cell) to an area of lower concentration (inside the cell). </span>
