Question 4 of 20 These pictures compare the numbers of prairie dogs in an area at two
different times. The picture on the right shows the area 10 years after the
picture on the left.
Which statement best explains the change over the 10-year period?
O A. The death rate decreased, and the immigration rate remained
steady
A.
O B. The emigration rate remained steady, and the birthrate increased.
O C. Both the birthrate and the immigration rate decreased.
O D. Both the immigration rate and the birthrate increased.
SUBMIT

answer; 60-100; beats per minute

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

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the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.