Biology, 13.09.2021 23:20 eshaesmot12345
What is one way humans return nitrogen to the soil for the nitrogen cycle?
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Biology, 21.06.2019 15:00
6. in the dna double helix, how are the two strands of dna held together? a. chemical bonds between base pairs hold the two strands of dna together. b. hydrogen bonds between the base pairs hold the two strands of dna together. c. hydrogen bonds between sugar groups and phosphate groups hold the two strands of dna together. d. chemical bonds between sugar groups and phosphate groups hold the two strands of dna together.
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Biology, 21.06.2019 21:30
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.
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Biology, 22.06.2019 02:10
Draw the structure of dna nucleotide with adenine as nitrogenous base
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Biology, 22.06.2019 09:00
How does science influence the decisions made about social, economic, and political issues?
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What is one way humans return nitrogen to the soil for the nitrogen cycle?...
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