An enlarged right ventricle both increases oxygen intake and the risk of pulmonary hypertension. How can natural selection result in an adaption that produces both positive and negative effects? (1 point) The positive effects outweigh the negative effects in certain environments . The negative effects appear later in life in certain environments . The positive effects appear after reproductive age in certain environments . The negative effects appear before reproductive age in certain environments .
The negative effects appear before reproductive age in certain environments. In this scenario, individuals with an enlarged right ventricle may have increased oxygen intake, which can be beneficial for survival and reproduction. However, the risk of pulmonary hypertension may not manifest until later in life, after the individual has already reproduced. This can allow the trait to be passed on to future generations before the negative effects become detrimental. Ultimately, natural selection may favor this adaptation in certain environments where the positive effects during reproductive age outweigh the negative effects that arise later in life.
