Babies with very low or very high birth weight are less likely to survive. observe a graph of the data. a graph entitled percentage of babies born at different weights has weight in pounds on the horizontal axis, and percentage on the vertical axis. a small percentage of babies are born at the low and higher birth weights, and a greater amount are around 7 to 8 pounds. 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.

d. changes in climate and historical records

hope this

the correct answer is d

potentially fatal issues such as heart attacks and strokes

explanation:

1) a giant star is a star with a radius much larger than that of our sun (even hundreds of times bigger). they can be either blue giants or red giants: in the first case, the surface temperature is very high, higher than that of the sun, while in the second case the surface temperature can be lower than that of the sun. the same applies to the mass: blue giants are very massive stars, burning quickly their nuclear fuel, while red giants can have small masses (a little bit bigger than that of our sun).

2) we can find giant stars in the upper part of the hr diagram, blue giants will be on the upper left corner since they have high luminosity and high temperature, while red giants will be on the upper right corner, having high luminosity but low temperature.