Which area, A, B, C, or D, is an area of self-perpetuating embryonic tissue that often continuously grows and produces new tissue during the life of a plant?
1.A
2.B
3.C
4.D
2
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If flagellar rotation of Escherichia coli cells is ________, then CheA is ________.
A. clockwise; unphosphorylated B. clockwise; autophosphorylated C. counterclockwise; unphosphorylated D. counterclockwise; autophosphorylated
A researcher has been studying columbine in a meadow over the last decade. During that time, she has noticed that columbine flowers have gone from producing long nectar spurs to very short nectar spurs
What can the researcher deduce from this observation? Select all correct choices. A. That the columbine in the meadow has evolved to accommodate new pollinators. B. That the columbine in the meadow has access to more nutrients. C. That there are more bees visiting the meadow compared to moths. D. That new species of columbine may have emerged in the meadow.
Which of the following is the most important natural auxin?
a. abscisic acid b. gibberellic acid c. jasmonic acid d. indoleacetic acid e. salicylic acid
In Cell Biology what can limit the progress of science?
a. Lymphocyte b. Progress c. Eating d. Bacteria e. Technology