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The phrase that best describes a meteoroid is "Small pieces of rock and dust in space"
Meteoroids are small bodies of the solar system. They are rocks between 100 μm -50 m in diameter that are smaller than comets and asteroids and bigger than cosmic dust. They commonly are fragments of comets and asteroids that had been separated from them by heavy impacts. When a meteoroid enters the atmosphere, it burns, and the glow that this burn produces is what we call "shooting stars". However, the correct definition is the mentioned above.
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Answer:
Non-zero digits are always significant. Any zeros between two non-zero digits are significant. A final zero or trailing zeros in the decimal portion ONLY are significant.
Explanation:
Answer: 46 chromosomes
Explanation: Germ cells contain a complete set of 46 chromosomes (23 maternal chromosomes and 23 paternal chromosomes). By the end of meiosis, the resulting reproductive cells, or gametes, each have 23 genetically unique chromosomes. The overall process of meiosis produces four daughter cells from one single parent cell.
