Suppose that louisa is cut by broken glass during a lab accident. which is the proper place to dispose of the paper towels that are used to clean up the blood?
broken glass container
hazardous waste container
spilled chemicals container
classroom waste container

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism

What are the student's observations and inferences before he starts his investigation?

When a gasoline engine burns gasoline, what type of chemical reaction is occurring?