In insects and spiders, __________ take up fluid, uric acid, and solutes from the blood and deliver them to the gut. Fill in the blank(s) with the appropriate word(s)
ANSWER: Malpighian tubules
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Indicate whether the statement is true or false
Which of the following statements about the colon is NOT true?
A. The colon is active in water absorption, removing about 95% of the water that enters it and returning it to the bloodstream. B. Feces consists of about 25% water and 75% solids that are mainly bacteria from the intestinal tract. C. Insufficient absorption of water can result in diarrhea that may be life-threatening. D. Cells in the walls of the large intestine absorb vitamin K that is produced by bacteria resident in the colon. E. The last section of the colon is the rectum, which terminates in the anus.
According to the mathematical equation used in the Hardy-Weinberg principle, if the alleles for a certain trait in a population are A1 and A2, then the proportion of individuals with the genotype ________ is represented by 2pq
Fill in the blank(s) with correct word