<em>Concave mirror is used in headlights of vehicles, because when the bulb of headlight is placed at focus of concave mirror, it allows the light to spread out to infinity (longer distances).</em>
<span>The three domains of the tree of life are the Eubacteria, Archaea, and Eukarya. The Eubacteria and Archaea are the organisms that do not have nuclei and cell organelles. Eukarya are all other organisms that include nuclei, which would later include animals, fungi, and plants in general.</span>
Answer: anaphase
Explanation: Nondisjunction can occur during anaphase of mitosis, meiosis I, or meiosis II. During anaphase, sister chromatids (or homologous chromosomes for meiosis I), will separate and move to opposite poles of the cell, pulled by microtubules
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