The blood is injected with a special dye that stains the areas where it passes through. Where in the brain and spinal cord would you expect to see the stain?

Which best describes carbon dioxide’s path out of the body

A. describe the scientific method, using pasteur's swan-necked flask experiment as an example.

What is a population? a. all the members of the same species living in the same ecosystem at the same time b. the number of a species living in the same ecosystem over a period of time c. the total number of organisms living in an ecosystem at a point in time d. all the members of a food web in the same ecosystem