Answer:
in controlled experiment an independent variable is systematically manupulated and dependent variable is measured ; any extraneous variables are controlled
Each haploid sperm cell will have only 23 chromosomes.
<span>Meiosis is the process of cell division by which involving gametes. Cell division is just the same for sperm and egg cells, but they have distinguishable descriptions and labels in the process. Spermatogenesis is for the males’ sperm cells and oogenesis is the process for females’ egg cells. The cell division of meiosis involves the two phases, respectively meiosis I and meiosis II. </span>Meiosis I like mitosis is the cell division that produces diploid cells<span>. These diploid cells are cells that contain a complete pair of chromosomes which is 46. The result is two diploid cells after the first meiosis. To provide clear explanation, in contrast haploid cells only contain 23 chromosomes and are created after meiosis II which is 4 in number.<span> </span></span>
Answer: <span>Garments that protect extremities
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<span>During cold weather, the most important thing
for a person to look for is an exercising clothing that can protect the extremities so that you will not experience hypothermia, frostbite and generalized vasoconstriction, which are dangerous to your health.
Therefore, choosing the right garment will allow your body to give off heat during exercise in cold weather and maintain body heat during rest. Moreover, wool is a good fabric that could retain body heat.</span>
