Answer the following statements true (T) or false (F)
1.The theory that organisms could arise suddenly from the nonliving component chemicals was called the theory of spontaneous generation.
2.The early report that Stanley Miller had created "life in a test tube" in his prebiotic simulations was correct.
3.The enzyme that copies RNA into complementary DNA is RNA polymerase.
4.Natural selection would have favored progenotes that could use more diverse food sources.
5.The geologic timescale is divided into eons, eras, periods, and epochs defined by major geological or biological events.
1.TRUE
2.FALSE
3.FALSE
4.TRUE
5.TRUE
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Based on figure 16.15, which of the following best explains why toxic shock syndrome peaked in the early 1980s?
a. Some strains of S. aureus developed resistance to methicillin. b. The drug methicillin was invented in the 1980s c. A single strain of S. aureus was responsible for the toxic shock syndrome, and women could not develop immunity to this strain d. Some strains of S. aureus were able to adapt to the new environment produced by ultra-high-absorbency tampons
Carbon balance focuses on the balance between
A) uptake of CO2 in photosynthesis and loss of heat via evapotranspiration. B) loss of CO2 through respiration and gain of nutrients. C) loss of H2O balanced with the gain of CO2 via transpiration. D) uptake of CO2 in photosynthesis balanced with the loss of CO2 during respiration.
The tropical rain forest biome is characterized by:
a. high density of plants, but nutrient poor soil. b. high density of plants and nutrient rich soil. c. low density of plants due to nutrient poor soil. d. low density of plants, yet nutrient rich soil. e. intermediate density of plants and intermediate nutrient supply.
Figure 17.5
As the trees in England become less sooty due to pollution controls on factories, which of the moths in the accompanying figure will be selected against?
A. The dark moth on the dark tree B. The light moth on the light tree C. All of the light moths equally D. The dark moth on the light tree E. All of the dark moths equally