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For centuries, people believed that living things could arise from non-living matter. For example, it was thought that maggots spontaneously appeared in rotting meat. What is the correct term for this now-disproven idea?

Carbon-14 is a radioactive isotope of carbon used in carbon dating. The number 14 refers to the total number of protons and neutrons in the atom’s nucleus. Given that the atomic number of carbon is 6, how many neutrons does carbon-14 have?

The element sodium (Na) has an atomic number of 11. How many protons are in a neutral atom of sodium?

In a eukaryotic cell, the process of cellular respiration begins with glycolysis, which takes place in the cytoplasm. What is the next stage and where does it take place?

Pure water has a pH of 7 at room temperature. What does this pH value represent on the pH scale?

In the oxygen gas molecule (O2​), two oxygen atoms are held together by a chemical bond. Both oxygen atoms have the same electronegativity, so they pull on the shared electrons with equal force. What type of bond do they form?

Which of the following characteristics is shared by both a prokaryotic cell and a eukaryotic cell?

In the electron transport chain of cellular respiration, electrons are passed from molecule to molecule. When the molecule NADH gives up its electrons and becomes NAD+, what has happened to NADH?

A DNA mutation occurs in a fruit fly that causes it to have a slightly different wing shape. This change does not affect the fly’s ability to survive or reproduce. What is the most likely outcome of this mutation in the population?

A cell is undergoing mitosis. A scientist observes that the sister chromatids are being pulled apart and are moving toward opposite poles of the cell. In which phase is this cell?