C.
Every change in a species is coded within the DNA. But the bird had lost a toe an accident. So the toe-loosing-option isn't true because not every bird looses his toe.
(Example: If a women gets bitten by a snake on the arm and gets the arm removed from her body and then in a year or so has a baby with her new husband. The baby won't be born with one arm because his/her mother lost her arm.) <span />
D. flammability
is a chemical property
The 3 common elements seen in a majority of carbohydrates or sugars are Carbon, Hydrogen and Oxygen.
True, reddish-yellowish color on pH paper shows acidity
