1. Before most cell divisions, most cells donot increase in size.
2. During cell divisi...
Biology, 14.04.2021 21:30 stephesquilin
1. Before most cell divisions, most cells donot increase in size.
2. During cell division, one of the daughtercells gets all of the larger chromosomes, and the other daughter cell gets allof the smaller chromosomes.
3. The number of chromosomes in a cell is duplicatedbefore the beginning of mitosis.
4. Many species of bacteria have a single circularchromosome that consists of double stranded DNA.
5. Under ideal conditions, some bacteria canreproduce every 20 seconds.
Answers: 3
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The phlogiston theory in the 17th century attempted to explain burning. the theory stated that combustable objects contained a material called phlogiston, a substance without mass, color, odor, etc. after objects burned, the objects were dephlogistonated and were then in their true form. the phlogiston theory was accepted until the 18th century, when lavoisier proved that combustion requires a gas that has mass. phlogiston is considered a) to be scientific knowledge b) not to be scientific knowledge c) to be proven by scientific method d) to be accepted in the modern scientific community
Answers: 2
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Which of the following types of pollution is most responsible for large numbers of deaths worldwide because of unsafe drinking water? (a) nutrient pollution (b) thermal pollution (c) pathogen pollution (d) sediment pollution
Answers: 2
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