Over the last 200 years, scientists have increased their knowledge of how to use chemicals to create medicines. What is one result of this trend? Humans now have a longer life expectancy.
Humans are no longer at risk of serious diseases.
Medicines that use chemicals no longer have side effects.
Medicines that use chemicals are now less powerful. GIVING BRAINLIEST

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.

What type of competition exsist between two species. turtles and fish

What are antigens and antibodies? how are they involved in the body’s response to incompatible blood?