exercise strengthens skeletal muscle, and exercise strengthens skeletal and cardiac muscle. a. resistance, aerobic
c.
aerobic, resistance
b.
aerobic, aerobic
d.
resistance, resistance

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.56 kg of fluorine. a second sample produced 1.32 kg of magnesium. part a how much fluorine (in grams) did the second sample produce?

What is formed when amino acids form long chains or polymerize