In the ancestors of whales, the pelvis and femur, or hindlimb, were involved 1 point with walking on solid ground. In modern whales, the pelvis and femur
shown in below are now... *

The options are: example of fossils
acquired traits
examples of natural variation
homologous structures
analogous structures
vestigial structures

(help is appreciated

How will technology impact medicine in the future?

Dr. kaylan is an ecologist who studies bird behavior. she sets up an experiment to test which type of food crows are most likely to eat when given a choice between walnuts, corn, and sunflower seeds. to perform her experiment, dr. kaylan places three food bins in an area frequented by cows. each bin contains one of the three food types. then, she measures how much of each food type is eaten every day for a month and summarizes the results of her experiment in the pie chart below. based on her results, dr. kaylan concludes that crows choose to eat corn more frequently than other food sources because it has a higher nutritional value. what is a reasonable alternate conclusion that can be drawn from dr. kaylan's data

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?