We de-starch leaves so as to remove the starch produced in it during photosynthesis stored as food. Removing the starch would help us to infer our observations clearly as there is no change or substance that would effect the experiment we want to carry out. For example , the indicators we use might give blue-black or green colors just because of the presence or absence of starch.
Answer:
B: humans inhale oxygen from plants which is used in cellular respiration to produce water
Explanation:
<span>B. Inherited behaviors that allow animals to survive and reproduce will be spread throughout the population and can evolve by natural selection.</span>
<span>... beyond africa to asia and europe.</span>
