Henry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached?

gene flow greatly affects small populations, but large populations can recover.
genetic drift greatly affects small populations, but large populations can recover.
gene flow greatly affects large populations, but small populations can recover.
genetic drift greatly affects large populations, but small populations can recover.

The correct answer would be Genetic drift greatly affects small populations, but large populations can recover.

Genetic variation is one of the mechanisms of evolution due to which the allellic frequency of a population changes as a result of random sampling of the organisms.

It may result in the loss of the genetic variation or alleles in a population.

Its results are maximum when the population size is small as they are more susceptible to the random changes.

In addition, its effects are increased when the population size is adversely reduced due to a natural disaster.

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.