Oogamy always involves fertilization from gametes of differing sizes.

True
False

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.

Cells destroy body cells infected by a virus or bacteria. killer t t memory t none of the above

The activity of the modern sample is 1.10 bq . how long does that measurement take?