Ques:Q: Prokaryotic organisms, like bacteria, reproduce through what process, where they grow and divide in half? Read this paragraph and choose the correct option from the provided answers: Prokaryotic organisms, like bacteria. Bacteria reproduce through binary fission , where they grow and divide in half ( Figure below ). First, their chromosome replicates and the cell enlarges. The cell then divides into two cells as new membranes form to separate the two cells. After cell division, the two new cells each have one identical chromosome. This simple process allows bacteria to reproduce very rapidly. Choices: - symbiotic fission - singular fission - multiple fission - binary fission A:

Ans:binary fission
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Ques:Q: In which process do two light nuclei combine to produce a heavier nucleus and great energy? Read this paragraph and choose the correct option from the provided answers: Summary Nuclear reactions are accompanied by large changes in energy, which result in detectable changes in mass. The change in mass is related to the change in energy according to Einstein's equation: E = (m)c2. Large changes in energy are usually reported in kiloelectronvolts or megaelectronvolts (thousands or millions of electronvolts). With the exception of 1H, the experimentally determined mass of an atom is always less than the sum of the masses of the component particles (protons, neutrons, and electrons) by an amount called the mass defect of the nucleus. The energy corresponding to the mass defect is the nuclear binding energy, the amount of energy released when a nucleus forms from its component particles. In nuclear fission, nuclei split into lighter nuclei with an accompanying release of multiple neutrons and large amounts of energy. Thecritical mass is the minimum mass required to support a self-sustainingnuclear chain reaction. Nuclear fusion is a process in which two light nuclei combine to produce a heavier nucleus plus a great deal of energy. Choices: - general fusion - light fusion - certain fusion - nuclear fusion A:

Ans:nuclear fusion
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Ques:Q: Name a one-celled organism that can be found on your skin, in the ground, or in all different types of water. Read this paragraph and choose the correct option from the provided answers: Cells are found in all different types of environments, and these environments are constantly changing. For example, one-celled organisms, like bacteria, can be found on your skin, in the ground, or in all different types of water. Therefore, cells need a way to protect themselves. This job is done by the cell membrane, which is also known as the plasma membrane. Choices: - virus - fungus - pathogens - bacteria A:

Ans:bacteria
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Ques:Q: Mass spectrometry today is used extensively in chemistry and biology laboratories to identify chemical and biological substances according to their ratios of what? Read this paragraph and choose the correct option from the provided answers: Mass spectrometry today is used extensively in chemistry and biology laboratories to identify chemical and biological substances according to their mass-to-charge ratios. In medicine, mass spectrometers are used to measure the concentration of isotopes used as tracers. Usually, biological molecules such as proteins are very large, so they are broken down into smaller fragments before analyzing. Recently, large virus particles have been analyzed as a whole on mass spectrometers. Sometimes a gas chromatograph or high-performance liquid chromatograph provides an initial separation of the large molecules, which are then input into the mass spectrometer. Choices: - ph to charge - volume to charge - mass to volume - mass-to-charge A:

Ans:
mass-to-charge
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