(Question)
Q: What are the two types of cells? Read this paragraph and choose the correct option from the provided answers: There are two cell types: prokaryotes and eukaryotes. Prokaryotic cells are usually single-celled and smaller than eukaryotic cells. Eukaryotic cells are usually found in multicellular organisms, but there are some single-celled eukaryotes. Choices: - mammal and plant - bacteria and eukaryotes - animal and bacteria - prokaryotes and eukaryotes A:
(Answer)
prokaryotes and eukaryotes

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Q: The minimum amount necessary for self-sustained fission of a given nuclide is called what? Read this paragraph and choose the correct option from the provided answers: Not every neutron produced by fission induces fission. Some neutrons escape the fissionable material, while others interact with a nucleus without making it fission. We can enhance the number of fissions produced by neutrons by having a large amount of fissionable material. The minimum amount necessary for self-sustained fission of a given nuclide is called its critical mass. Choices: - its half-life - its molar mass - its activation energy - its critical mass A:
(Answer)
its critical mass

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Q: Since warmer molecules have more energy, they are more what? Read this paragraph and choose the correct option from the provided answers: The density of air varies from place to place. Air density depends on several factors. One is temperature. Like other materials, warm air is less dense than cool air. Since warmer molecules have more energy, they are more active. The molecules bounce off each other and spread apart. Another factor that affects the density of air is altitude. Choices: - inactive - dense - abundant - active A:
(Answer)
active