What is the name of the nucleotide base substitute for thymine in DNA transcription and what is its purpose? adenine, to make the mRNA strand easily destroyed after use guanine, to make the mRNA strand stronger so it may be used many times uracil, to make the mRNA strand stronger so it may be used many times uracil, to make the mRNA strand easily destroyed after use

What volume of a 0.25 m solution can be made using 0.55 moles of ca(oh)2

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.

Match each description to the appropriate biome. tropical savanna desert tropical rain forest taiga tundra has sparse vegetation and very cold temperatures located near the equator and contains trees that form dense canopy layers is very hot and dry, and has plants that need little water has cold winters, heavy snowfall and is dominated by conifers has warm temperatures and is dominated by grasses