The map shows the allele frequency of sickled hemoglobin (hbs) and malaria endemicity in africa. (picture below) which statement best explains the relationship between hbs allele frequency and malaria endemicity in africa? a)when an area is malaria free, the hbs allele frequency is between 0 and 2.02. b)when an area is holoendemic, the hbs allele frequency is between 0.52 and 4.04. c)when an area is malaria free, the hbs allele frequency is between 12.64 and 18.18. d)when an area is holoendemic, the hbs allele frequency is between 0 and 0.51.

In the two maps that show the allele frequency of sickled hemoglobin (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 color 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.

1. a host loses nutrients to a parasite

2. a parasite only benefits when the host is alive (cause if the host dies the parasite dies with it )

3. producers to consumers

4. the tapeworm is a parasite

5. they convert energy from the sun (photosynthesis)

6. sunflower-robin (i think im 80% sure)

7. producer

8. consumer

9. prey

10. fresh water snails ( cause the green algea is the producer and the snails are the primary consumers and the small fish consumer so is the big fish)