Biomagnification and mercury concentrations in the ocean most often occur . a.
throughout the food chain
b.
in larger fish such as tuna and swordfish
c.
in smaller fish such as herring and mackerel
d.
in crustaceans such as crab, shrimp, and lobster

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.

Me with these questions if you’re it sure don’t answer

Which of the following is a way that minerals are used? a. industry construction technology d. all of the above