Vo2max is a. a test used to people lose unwanted weight. b. the highest level of oxygen consumption that can be sustained during exercise. c. a measurement of how much blood the heart pumps during exercise. d. not a good test of cardiorespiratory fitness.

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

Mrna decodes information from the original dna master plan to build proteins in the during the process of ribosomes.

Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above