Consider a population undergoing logistic growth. When (K-N)/K = 0, what does that imply about the birth rate (b) and death rate (d)?
A. b > d
B. b < d
C. b = d
D. It is not possible to make an inference
about b and d from this information.
C
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Which of the following statements is accurate?
A. Prokaryotes are found virtually everywhere on Earth. B. Prokaryotes nutrition is highly diverse. C. Prokaryotes come in a variety of shapes. D. All of the above are accurate statements.
If an X-linked recessive trait has a frequency of 5% in males, what percentage of females are carriers? (Assume that the population is in Hardy-Weinberg equilibrium.)
A) 9.5% B) 5% C) 95% D) 4.2% E) 10%
Concentrations of trace elements in an environment above what is required by organisms generally have no effect on those organisms. Which of the following is a valid response to this statement?
a. True. Only trace element limitation can lead to disease among organisms. b. True. Most organisms have evolved adaptations that allow them to tolerate very high concentrations of trace elements in the environment. c. False. Elevated concentrations of some trace elements such as cobalt and chromium can be toxic. d. False. Elevated concentrations of trace elements such as chromium and phosphorus can be toxic. e. False. Increasing the concentration of trace elements above what is required generally has a beneficial effect on organisms.
The uncoiled DNA in a eukaryotic cell is much longer than the cell itself
Indicate whether the statement is true or false