You count the number of bacteria in 5 of the 1/400 mm2 small boxes of the central grid on the hemocytometer. Your results are: 12 cells in box #1, 17 cells in box #2, 17 cells in box #3, 14 cells in box #4, and 16 cells in box #5. You are counting a 1:10 dilution of the original sample. What is the concentration of the original culture (in cells/ml)?

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.

answer; cnidarians;