A60-year-old man is found to be unresponsive, pulseless, and apneic. you should: select one:
a. begin cpr until an aed is available.
b. determine if he has a valid living will.
c. start cpr and transport immediately.
d. withhold cpr until he is defibrillated.

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.

Which of the following is likely not involved in this example of ecological succession? a) the rotting remains of plants add to the fertility of the soil. b)the soil becomes so fertile that eel grass is replaced by other plant species. c) the roots from plants stabilize the sediment, keeping it in place. d) the concentration of salt becomes so high that all plant life is destroyed.

Compare and contrast your sells take in oxygen, water, and food. what is one waste product that leaves your cells?