Scientists use whale flukes to identify individuals in a population. which of the following characteristics of a whale fluke is not a genetic variation passed on from parent to offspring?

a.) coloration of the fluke
b.) shape of the fluke
c.) size of the fluke
d.) scars on the fluke

The correct answer is option D, Scars on the fluke

Explanation:

The naturally existing characteristics such as colour, shape and size of any organism are linked to the genetic traits expressed. Only genetically controlled characteristics are passed on from generation to generation.  

However, scars on the body (are caused due to external environmental factors) are not genetically controlled feature and thus it will not be passed on from parents to offspring.  

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.