The difference in air pressure.
The primary concern of the scientist in clinical trial is patient safety.
A clinical trial is one of the final stages of any research process according to the requirement. Studies are done to find if the approach of the research and treatment is effective.
Clinical test or trial on human beings is done only after the pre-clinical phase which involves laboratory studies on animals (in vitro) to check the safety and efficiency of the drug. Animals are quite different from humans so human clinical trials are required to be done.
The main aim of clinical trial involves three major things to be considered: if the drug is working, the efficiency of the drug as compared to the currently present drug and most importantly that the drug is safe for human use and the patient is safe after the administration of the drug into the body.
Answer: <u>123.5 μm</u>
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(a) Total power of magnification 100x because ocular lens is 10x magnification maultiplied by 10x objective lens.
(b) Widht of the onion cell can be calculated as follows:
If the number of units observed for an onion cell through ocular micrometer (10x) under microscope is 'A'.
Then, the widht of the cell will become = A X 9.5 (Calibration factor of ocular unit and total power fo magnification is 100x)
So, for example if the observation through ocular micrometer is 13, then the widht of the onion cell will be = 13 X 9.5 = 123.5 μm
Taxonomy is the practice of identifying different organisms, classifying them into categories, and naming them. -Google
As humans we can do whatever to gentically modify trees, but trees take over 100 years to grow back, to fix this, we could prevent unessecary tree cutting and plant new trees for the next generations , they're renewable because they can be replenished over a course of time