Explain how the ecosystem that you selected follows the law of conservation of mass and the law of conservation of energy. it is said that only about 10% of stored energy is transferred between trophic levels of the ecosystem. be specific in using your ecosystem in your example. i chose plz

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

Types of scientific inquiry that biologist engage in that cannot be completely controlled

Ascientific idea becomes valid when it is what?