Babies with very low or very high birth weight are less likely to survive. observe a graph of the data. which statement is a valid claim that could be made using the data in the graph? directional selection is occurring because the graph favors an extreme. stabilizing selection is occurring because the average is favored. disruptive selection is occurring because the two extremes are favored. biodiversity selection is occurring because of the greater variation.

The correct answer is option Stabilizing selection is occurring because the average is favored.

In stabilizing type of natural selection, the individuals having the average  phenotype are promoted. The extreme phenotypes are ultimately eliminated.

The birth weight of the humans should be maintained to an average value. In case, the weight of  the child at the time of the birth is extremely less it would be hard for the baby to survive. In  order to survive better, proper amount of nutrition in body is required. In case, the weight of the  baby is so less, then the amount of the stored nutrients in the body would be so less, hence, it  would not survive.

In other case, if the weight of the baby is too much, then the delivery of the baby would be very  complicated. The passage of the baby through the birth canal would not be possible. Other than  this, the baby would be born with obese condition, which can hamper the health of the child.  Hence, the maintenance of an average weight is required.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.