In meiosis, the complexity of DNA (amount of information encoded) per cell is essentially halved as compared to the original cell. This reduction in information occurs immediately after:
A. metaphase I.
B. metaphase II.
C. telophase I.
D. telophase II.
C
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Which ecological role is least likely to be performed by bryophytes?
a. enhancing the water-holding capacity of garden soil
b. stabilizing soil surfaces with a biological crust in harsh places c. supplying a food source for animals in the arctic tundra d. providing pollination services for agricultural crops e. helping to build soil on bare rock
Quantitative inhibitors in plants are toxic secondary compounds, often causing herbivores to avoid their consumption
Indicate whether the statement is true or false
Seeds are reproductively superior to spores because:a
seeds contain a multicellular young plant. b. only seeds can survive for an extended period of time. c. seeds are used as a food source for humans. d. seeds are protected by a multicellular seed coat. e. seeds contain a young plant and also are protected by a seed coat.
The __________ is shorter in females than it is in males, which explains the greater likelihood of
developing bladder infections in __________. a. ureter; females b. ureter; males c. renal papilla; females d. urethra; males e. urethra; females