For a long time, the fact that immigrants from eastern europe, asia, and latin america tended to be shorter than native-born americans was taken as evidence that there were inherent racial differences between these populations. however, the immigrants had children who grew up to be as tall as anyone else. geneticists now tell us that, although there can be considerable variation in height within a group due to genetics, height differences between groups are largely caused by diet. what does this demonstrate?

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.

How do the evolutionary chart and the video support the claim that all living things are made up of cells?