A metaphase plate forms in both plant and animal cells and is when the chromosomes __________. Fill in the blank(s) with the appropriate word(s)
ANS: line up along the middle of the cell PTS: 1 DIF: Easy OBJ:
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Phenotypic differences between the sexes are called sexual ____
Fill in the blank with the appropriate word.
Solution A has a pH of 6 and solution B has a pH of 8. Which of the following is true regarding the
concentration of hydrogen ions in each solution?
a. A has 100 times greater H+ concentration than B. b. B has 100 times greater H+ concentration than A. c. A has 7/9 of the H+ concentration of B. d. A has 9/7 of the H+ concentration of B. e. A has 1,000 times greater H+ concentration than B.
A cow with black and white patches is produced from a white bull and a black cow. This is an example of
a. incomplete dominance. b. Codominance. c. dominance/recessive trait. d. Pleiotropy.
Over tropical rainforest areas, approximately 90% of the water that reaches the atmosphere comes from
A. plant transpiration. B. plant metabolism. C. animal perspiration. D. plant absorption. E. animal metabolism.