What is the main function of digestion? breaking down food into forms that the body can use transporting oxygen to the different parts of the body absorbing salts through the villi pumping blood to different parts of the body

Nasa scientists must work together to make sure that everything is correct and accounted for when launching a shuttle. besides a physicist, what other type of scientist would be in making sure that the shuttle has the appropriate type and amount of fuel to reach its destination?

Spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Kinases add - groups to other enzymes. this activities some enzyme while inhibiting other