The primary cause of a pearl forming is .

A. A larva that is not released after fertilization of the egg
B. Pollutants present in the water
C. The presences of a nacreous layer in oysters
D. An irritant that becomes embedded in the mantle

2polhiswhere is the energy in a glucose molecule stored? ooa. inside the carbon atomsb. inside the protonsc. in the bonds between the atomsood. inside the hydrogen atoms

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.

This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment