Viral characteristics include all but which one? a. most viruses are much smaller than bacteria. b. viruses do not contain any nucleic acids. c. viruses infect all types of life forms on earth. d. viruses multiply several ways but always in a host.

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.

Which of th following best describes how genes produce traits in an organism?

What is it called when lava when it erupts from the surface through volcanoes.