Ascientist has crossed purple-flowered four-o'clocks and obtained 248 offspring of which 188 purple and 60 white. from mendel's laws, he expects the offspring to be in a ratio of 3: 1 purple to white. calculate the chi square value for this cross. state the degrees of freedom, the p value, and whether or not you would accept or reject these results.

High blood pressure occurs when there is too much blood flowing through the blood vessels at one time. by changing the amount of water in the blood, blood pressure can change. the excretory system can to lower blood pressure. which would most likely occur in the kidney? a)more water would be transferred from the nephron. b)less water would be absorbed into the nephron. c)the amount of water in the bladder would decrease. d)the amount of water in the blood would increase.