The explanation most likely accounts for the increase in the number of male butterflies after the initial parasite problem is that male butterflies in the population survived had a gene that made them resistant to the parasite, as well as the gene, that was passed to their offspring.
So, the correct option is C.
A population's size might alter due to the occurrence of new people or species. The total number of living things that are present in a given habitat is referred to as its population. The scenario indicates that there are now considerably more men in the population. The male butterflies in the population that survived earlier had a gene making them resistant to the parasite, and they passed the gene on to their offspring, leading to the number of males to be increased in the population.
This increase in the number of population growth of males can be explained by the fact that the male butterflies in the population that survived earlier had a gene making them resistant to the parasite, and they passed the gene to their offspring.
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The given question is incomplete. The complete question is:
A few years ago the population of male blue moon butterflies on the island of Samoa declined. One hypothesis for the decline of the male butterflies is that a parasite-infected the cells of female butterflies. The parasite was passed to offspring through the females’ eggs and killed the male butterfly embryos. At one point during the decline, nearly all the butterflies in the population were females, but after five years the number of males in the population increased significantly.
Which explanation most likely accounts for the increase in the number of male butterflies in the five years after the initial parasite problem?
A. Male butterflies in the population that survived were able to prey on the parasites living in the females’ egg cells.
B. Female butterflies in the population that survived had a genetic adaptation that allowed them to transform into male butterflies.
C. Male butterflies in the population that survived had a gene that made them resistant to the parasite, and they passed the gene on to their offspring.
D. Female butterflies in the population that survived were able to protect the male eggs from the parasite and provide extra care for the male offspring.
