2. Most unicellular organisms use cell division (specifically mitosis) to:

a. Make identical copies of themselves

b. Create new and unusual unicellular organisms

c. Increase variation in their species

d. Become a multicellular organi. sm

In an energy pyramid, which level has the most available energy?

Suppose a lab group reports a ppercent yield of sand of 105. is it really possible to collect more sand than was originally represented? what is the possible explanation for the extra product?

You exhale co2 which is produced during cellular respiration.  co2 combines with the water in your blood's plasma to make up one half of the body's most important buffer pair, carbonic acid.  the more physical activity you engage in, the more co2 your body is producing.  you can see this by putting some of the cabbage indicator in a glass and then blowing bubbles into it through a straw.  can you see a change in the color of the indicator?