Answer:
it is poisonous or harmful to the human body
A dominant trait can be shown both when an organism is homozygous dominant AND heterozygous. Two different genotypes give the same visible result so a testcross is needed to be able to accurately say if the organism is homozygous dominant or heterozygous
A mother's diet before conception can permanently affect how her child's genes function, according to a study published in Nature Communications. A 2003 study found that a female mouse's diet can change her offspring's coat color by permanently modifying DNA methylation.
I believe it is “animals and plants caanot directly use all the nitrogen found in our atmosphere”
Point source pollution is a single, identifiable location of a pollution like a drainage or a pipe. On the other hand non-point source pollution refer to wastes that are disposed at a wide area and cannot be easily determined where the sources are. The answer for this is false. It is the non-point source pollution that is difficult to track and to control.