Differences between dna and rna include all of the following, except that

a. thymine is a base in dna, uracil is a base in rna.

b. rna consists of just one polynucleotide chain, dna consists of two chains.

c. dna uses the information in rna to assemble the correct amino acids and make proteins.

d. all of the above are correct.

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 buildup of sediments where a river empties into a slow-moving or nonmoving body of water is known as a/an

Identify characteristics of energy from the sun. check all that apply. almost all of the energy on earth comes from the sun. energy from the sun is known as mechanical energy. the energy in fossil fuels originally came from the sun. plants convert the energy of sunlight into chemical energy.