Floral microspores are located in the
A. corolla.
B. anther.
C. ovule.
D. stigma.
E. sepal.
B. anther.
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According to the lac operon model proposed by Jacob and Monod, what is predicted to occur if the operator is removed from the operon?
A) The lac operon would be transcribed continuously. B) Only lacZ would be transcribed. C) Only lacY would be transcribed. D) Galactosidase permease would be produced, but would be incapable of transporting lactose.
The bird-rhino relationship is an example of ________
A) parasitism B) mutualism C) predator-prey D) commensalism
Plants use ________ and ________ wavelengths of light and reflect the ________ wavelength.
A. green, blue, red B. white, green, blue C. red, blue, green D. white, green, red E. green, red, blue
The pace of evolution in which there is little change for long periods of time interrupted by short periods with major changes is called:
a. adaptive radiation. b. punctuated equilibrium. c. macroevolution. d. microevolution. e. convergent evolution.