Resistance to apartheid began shortly after the policy was established in South Africa. One group that
opposed apartheid was the African National Congress. Nelson Mandela
, a leader of this
group, was put in jail for his fight against apartheid. In the 1980s, Desmond Tutu
won the Nobel
Peace Prize for his work to end apartheid.

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?

Which of the following is required of a new drug?me