In the field of histopathology, the tissues to be observed under the microscope are cut in very thin slices. The thin slices make the tissue transparent, and thus, it becomes easier to observe the internal structures and accurately diagnose a disease. The tissues slices cut for the observation are generally not more than 3 micro meters in their thickness.
Hence, the answer is 'to make the tissues transparent and easier to observe'.
With flowers- most are asexual, meaning that if there is harsh conditions like rain or wind. Many of the seeds can be damaged and aren’t able to get to the female to make more. Yet, sexually the seeds are protected by the male until the seed is transferred into the female. But even then, it will be safer. Hope that helped. :)
Answer:
Blood vessels in the heart dilate to increase blood pressure.
<em>Hope this helps!!!</em>
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