Which of the following does not require the use of ATP? active transport
active transport

protein pumps
protein pumps

endocytosis
endocytosis

facilitated diffusion

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

Long term exposure to waves can cause sunburns and skin cancer.

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the