Asizable quantity of soil is washed down the mississippi river and deposited in the gulf of mexico each year. thus, there is a net movement of mass southward towards the equator. what effect does this tend to have on the length of a day?

What was dr. willem johan kolff’s first step in using the scientific process to invent the hemodialysis machine? he built the machine and tried it with various patients, collecting data about its effectiveness. when a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine. he researched and collected data about numerous patients who exhibited symptoms of kidney failure. he drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.

The normal shape of an enzyme is as shown in structure a. if the enzyme’s shape changes to that shown in structure b, what are two consequences of this change?

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?