Answer:
A scientific law is simply an observation of the phenomenon that the theory attempts to explain. For example, suppose that you were lying under an apple tree and observed an apple fall from a branch to the ground. The observation of this phenomena can be called the law of gravity.
Toxins in the soil would enter through the root system first.
I think B but I maybe wrong please correct
Answer:
amphibians because it is a cold blooded vertebrate and has aquatic gill breathing larvea
Explanation: