Answer the following statements true (T) or false (F)
1. r-selected species tend to have type III survivorship curves.
2. Drought and floods are considered to be density-dependent factors potentially affecting population size.
3. In a demographic transition, death rates decline before birth rates.
4. Worldwide human population growth has been exponential since the Industrial Revolution.
1. TRUE
2. FALSE
3. TRUE
4. TRUE
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The HPV vaccine has been recommended for
A) females 11-26. B) females 26-45. C) males. D) males and females 11-26.
The growth response in plants that is related to touch is called:
A. gravitropism B. gravitouchism C. thigmotropism D. turning in response to gravity E. turning away from light
How does cellular respiration differ in prokaryotes and eukaryotes?
a. Eukaryotes use substrate-level phosphorylation; prokaryotes use oxidative phosphorylation. b. Eukaryotes use mitochondria; prokaryotes use their plasma membrane. c. Eukaryotes use NAD+/NADH; prokaryotes use FAD+/FADH2. d. Eukaryotes do not all use oxygen; prokaryotes only use oxygen. e. Eukaryotes use only glucose; prokaryotes use only galactose.
Cells may enter stationary phase because of ________.
A. the accumulation of toxic waste products B. a lack of available oxygen C. the depletion of an essential nutrient D. All of the choices are correct.