A trade-off is the right answer.
A trade-off) is a situational determination that includes reducing or dropping a degree, amount or resources of a set in return for accumulations in other perspectives.
People in the Amazon performs the task of logging that is the cutting of the trees and storing the wood onto cars or wagons for the purpose of cleaning the forests for agricultural production to meet the demand of people for food. However, this activity of people in Amazon has caused a major problem of deforestation. Thus, the reduction in biodiversity is a trade-off between protection and economic expansion.
I think it's A....hope that helps at least
House sparrows in the northern part of North America are larger than those found in the southern regions. The possible mechanism of microevolution is more likely to be responsible for this is natural selection. The answer would be letter B.
)Sexual reproduction maintains a constant level of variation in the population and requires less energy.
