Which statement about enzymes is NOT true? Each enzyme is specific because of its shape and catalyzes on certain reactions.
Enzymes are destroyed when they are used and must be made each time a reaction
takes place.
Enzymes form a temporary bond with a reactant.
Enzymes are composed of polypeptide chains.

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.

Consider the skeleton. which skeletal system is represented by the shaded portion of the skeleton? spongy skeleton compact skeleton axial skeleton appendicular skeleton

What noticeable trend from this graph might be used to make a conclusion?