Biology, 09.10.2019 23:00 coolfreekid3
Which of these statements is true about the oxygen revolution? . a. cyanobacteria were the first organisms to introduce oxygen into the atmosphere.. b. protocells were the first organisms to produce oxygen in water, which then escaped into the atmosphere.. c. cyanobacteria were the first organisms to produce oxygen in water, which then escaped into the atmosphere.
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Biology, 21.06.2019 20:00
Which of the following is true of microbes? a. ninety-nine percent of all microbes are pathogenic.b. gene expression in bacteria is very similar to gene expression in humans, which facilitates the use of bacteria in recombinant biotechnology and gene therapy.c. all bacterial enzymes are harmful to humans and the environment.d. microbes create pollutants and toxins that harm the environment.
Answers: 2
Biology, 22.06.2019 01:30
Which of these best describes what occurs during cytokinesis? a) the chromosomes are separated b) the cell begins to divide by replicating the chromosomes c) the cytoplasm is divided between the two new daughter cells d) the nucleus opens to allow the chromosomes to enter the cytoplasm
Answers: 1
Biology, 22.06.2019 03:30
Describe how a student should adjust the microscope to see the cells on a slide more clearly?
Answers: 1
Biology, 22.06.2019 06:00
What is the statement plant growth is affected by the color light
Answers: 2
Which of these statements is true about the oxygen revolution? . a. cyanobacteria were the first or...
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