A person who is homozygous for the X chromosome is female.
Women have two X chromosomes, which means they are homozygous for the X chromosome - the word homozygous means that they have 'two chromosomes of the same kind.' Men have different types of chromosomes - XY.
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humans affect the levels of carbon dioxide in the air is by us humans using buring fossil fuels releases a chemical into the atmosphere reducing the amount of force cover and the rapid expansion of farming developing and and
industrial activities Are the least ink carbon dioxide into the atmosphere and changing the balance of the climate system
We see the moon because the sun's light reflects off it. So the phases change depending on how much the sun reflects of it. The moon circles around the Earth so at certain times there will be a full moon and at certain times a new moon and everything in between.