My family had a friend that always used the same perfume when she went out with us. Every time she got into our car, I quickly came to a time when I felt I could not breathe. Yet, my wife thought it was “pleasant”. Explain in the context of diffusion and our individual sense of smell

Which of the following systems in absorbing oxygen and releases carbon dioxide

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h, o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.

The bacteria inside a tube worm would be analogous to what organism in the ocean ecosystem near the waters surface? a. photosynthetic algae b. shrimp c. clown fish d. parasitic lamprey