The uterine lining, or endometrium, is the internal layer of the uterus which thickens and gets filled with blood vessels in preparation to receive a fertilized egg. If this does not happen, the uterus removes this extra layer through the vagina, in a process called menstrual flow, which lasts 5 days average.
Answer:
They move to an area with a lower oxygen concentration.
so so sorry if i got this wrong
Explanation:
Answer:
heres the answer
Explanation:
true, false, true, false, false, true,
d, c, b, b, a, c, b
Warm fronts cause several days of cloudy weather, while cold fronts cause heavy snow in the winter.
Deoxyribose + phosphate group + thymine.
This is because anything with ribose is RNA and uracil is in RNA not DNA, all 3 other options have at least 1 of these in.