When an area is malaria-free, the HbS allele frequency is between 0 and 2.02. Thus, option "A" is correct.
<h3>How, explain your answer briefly?</h3>
In the two maps that show the allele frequency of sickle haemoglobin (HbS) and malaria endemicity in Africa, it can be seen that in the regions with no malarial outbreak or malaria-free areas coincide with the grey to lighter shades of red in the heat map of the allele frequency of HbS. The colour coding in the heat map for the allele frequency tells us that the frequencies range from 0 to 2.02 in the malaria-free areas.
Hence the answer is A)When an area is malaria-free, the HbS allele frequency is between 0 and 2.02.
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Answer:
blind spot will not impair your vision
Explanation:
Blind spot may be defined as the point of our eyes where the optic nerve leaves our eye, which creates a "blind" spot as none of the receptor cells are located there.
A blind spot can only be studies in a laboratory because blind spot does not impair our vision. The blind spot falls on nose side of our retina, that means that the objects to our right side falls on the right eye's blind spot and objects to our left may fall on the left eye's blind spot. Thus, the blind spot normally does not impair our vision, since our eyes are moving and because our one eye catches what the other eye misses.
Answer:
i think it will clear the sky
Explanation:
Answer:
D.
Explanation:
Nonnative species is defined as the introduction of an alien species, foreign species or exotic species to a new region and affect the native species.
The exampe of nonnative species is introduction of water hyacinths from Asia in the United States which is affecting the native species and making the ecosystem crowdy.
Introduction of non-native species can disturb the balance of an already-established ecosystem by the native species including plants and animals.
Hence, the correct option is D.
