Brandon is trying to remember how the physical and chemical properties of metals, nonmetals, and metalloids compare. he wrote some notes down, then looked in his textbook to see which notes were correct. which of brandon's notes, listed below, are correct? i. metals are the best at conducting heat, and nonmetals are the worst. ii. metals are the worst at conducting electricity, and nonmetals are the best. iii. the shape of nonmetals is easy to change, but the shape of metals or metalloids is difficult to change. iv. nonmetals are dull in appearance while metals are usually shiny. v. metals tend to have a high density, and nonmetals tend to have a low density.

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

An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen

The most effective way to provide children with safety messages is to