Which best describes why a liquid needs a container when a solid does not?

solids fill their containers, and liquids have definite shapes.
solids have definite shapes, and liquids fill their containers.
solids particles do not expand to fill their containers, and liquid particles do.
solids particles expand to fill their containers, and liquid particles do not.

Which describes how weathering and erosion are different? weathering is caused by water. erosion is caused by wind and ice. erosion transports sediments. weathering is a natural process.

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

Give examples of selective advantage of organism’s body part/organ