Its stabilising. Since the selection pressure is against the extremes which are the normal blood and the sickle cell anaemia.
The intensity of light had greater impact on the rate of photosynthesis. It was observed that the jar in which the intensity of light was high, large amount of oxygen was produced as compared to the jar in which the intensity of light was low.
In the process of photosynthesis, oxygen is produced from the carbon dioxide. As the oxygen in the jar increases, the leaf disk rises with in the jar which also signifies the higher oxygen production with higher rate of photosynthesis in presence of high intensity of light.
Answer:
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Explanation:
All three have sacs known as alveoli just beneath their plasma membranes.
