PLEASE HELP 6. Fill in the blanks about the nitrogen cycle. Nitrogen from the atmosphere is fixed into a usable form in the soil by or by Sometimes little pockets of bacteria live in on plant roots, helping the plants get the nitrogen they need for their tissues. Once the pitrogen is fixed in the soil, plants will pick it up with their Animals will get their nitrogen by plants or other organisms in the food chain. When plants and animals die, the nitrogen will be returned to the soil by return nitrogen in the soil to the atmosphere by converting to gas.​

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explanation:

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'