Select the option that correctly finishes the following statement: "A cell's genome _________________."
(a) is defined as all the genes being used to make protein.
(b) contains all of a cell's DNA.
(c) constantly changes, depending upon the cell's environment.
(d) is altered during embryonic development.
(b)
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Darwin's book in which he described his views on evolution is:
A. Survival of the Fittest. B. On the Principle of Population. C. On the Origin of Species. D. Principles of Geology.
Which of the following statements about human population in industrialized countries is incorrect?
A) Average family size is relatively small. B) The population has undergone the demographic transition. C) Life history is r-selected. D) The survivorship curve is Type I. E) Age distribution is relatively uniform.
What governs the course of the vegetative growth throughout the life of a plant?
a. Genes that govern plant development switch on in response only to changing internal environment. b. Genes that govern plant development switch on in response only to changing external environment. c. Genes that govern plant development switch on and off in response to changing external environment. d. Genes that govern plant development switch on and off in response to changing internal environment.
Figure 23.12
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The accompanying figure illustrates the life cycle of a(n) ____.
A. zygomycete B. ascomycete C. basidiomycete D. glomeromycete E. lichen