Haploid means a single set of unpaired chromosomes. Diploid means two complete sets of chromosomes (one from each parent).
Haploid is N and diploid is 2N.
Answer: Humans changed a lot of things during time and one of those things ended up being the Carbon cycle .. They changed it by burning fossil fuels , which releases Carbon Dioxide into the atmosphere ..The nitrogen cycle however starts with nitrogen gas in the atmosphere then goes through the nitrogen cycle fixing Microorganisims to plants , then animals , decomposers then finally into the soil .
Explanation: Everything goes through a certain process to end up in the soil.
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C. Prophase 1 crossing over occurs during prophase 1 of meiosis.