The early branching angiosperms have ______ diversity than later branching groups
A. more
B. less
C. the same
B
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Cytoplasmic division in animal cells involves all
EXCEPT a. formation of a cell plate. b. a contractile ring mechanism. c. a deepening cleavage furrow. d. a ring of actin filaments under the plasma membrane at the equator. e. ATP.
Which of the following statements about ecological
succession is false? a. A disturbed area within a community may recover quickly if improved soil remains. b. Pioneer species are the start of community structure. c. The wastes and remains of early colonizers favor the survival of new species. d. Secondary succession occurs on a new volcanic island. e. Later successional species outcompete earlier species.
During metaphase I of meiosis,
A. individual chromosomes line up at the poles. B. homologous pairs are aligned at the equator. C. pairs of chromosomes separate from other pairs by spindle rays. D. only one member of each pair is in each cell.
Glucocorticoids help reduce inflammation, but they can also cause liver cells to produce extra sugar. In some people, this could lead to high blood sugar levels and bring about steroid-produced
A) gigantism. B) androgen insensitivity. C) hyperthyroidism. D) diabetes mellitus.