Answer:
A.because dna is our blood not sure
The erosion or disintegration of rocks, building materials, etc., caused by chemical reactions (chiefly with water and substances dissolved in it) rather than by mechanical processes
Fight or flight, because according to Hans Selye, this occurs at times of danger when your adrenaline is heightened.
Laws can be tested over and over and their results will still be the same, and laws cannot be disproved. Theories can always be disproved beause they are tested and experimented continously and results can change. Laws can't be theories but theories can be turned to laws. Hope this helps, didn't know an exact answer to that but I hope you can draw your answer from this information.
Answer: the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution.
or
the physiology, behavior, and other qualities of a particular organism or class of organisms.
and
the plants and animals of a particular area
