Answer:
condenser is placed below the stage and concentrates the light, providing bright, uniform illumination in the region of the object under observation. Typically, the condenser focuses the image of the light source directly onto the plane of the specimen, a technique called critical illumination. that is part of microscope which reflects light.
Explanation:
hope it will help you
For my opinion i think its A because lipid can dissolve in water.
"A gene pool consists of all genes, including all the different alleles that are present in a population. Number of times an allele occurs in a gene pool compared with the number of times other alleles occur. In genetic terms, evolution is any change in the relative frequency of alleles in a population."
When an acetate fiber is cut and is seen under a microscope, the cross section is crenulated shaped. Crenulated shaped cross section is a resultant effect when the external part of the cellular solution solidifies first than the interior of the acetate fiber when taken out rapidly out the acid bath.
