How is the phosphorus cycle different from the nitrogen or carbon cycles?

It has been said that veterinarians are the world's best doctors, since their patients cannot tell them what is wrong. what are some of the differences between human and animal medicine? what are the advantages and disadvantages of each?

Arrange these elements of the intrinsic conduction system in the order that a depolarizing impulse travels during a normal heartbeat. rank from first to last. do not overlap any tiles. view available hint(s) reset av nodeav bundleinternodal pathwaysbundle branchessa nodepurkinje fibers

How do you date a sample of rock that you suspect as being one of the earliest on earth