What is difference between an epidemic and a pandemic?
A) An epidemic is a disease; a pandemic is a treatment.
B) An epidemic is restricted to a local region; a pandemic is global.
C) An epidemic has low mortality; a pandemic has higher mortality.
D) An epidemic is caused by a bacterial infection; a pandemic is caused by a viral infection.
B
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Describe how the discovery of the structure of DNA is an example of the fact that science is a process that always builds on previous work. Text Section LO2 Key Concept: Watson and Crick, process of science, DNA structure Level: Application of concepts (maybe some advanced critical thinking)
What will be an ideal response?
Island populations do NOT exhibit which of the
following when compared to the mainland populations from which they are derived? a. greater variability b. greater extinction rates c. fewer heterozygous loci d. large chance fluctuations in allele frequencies e. less genetic drift
Which one of the following statements CORRECTLY compares the effects of a mutation in a gamete to the effects of a mutation in a somatic cell?
A) Somatic cell mutations always cause cancer, whereas gamete mutations do not. B) Gamete mutations are passed to the next generation, whereas somatic cell mutations are not. C) Gamete mutations are typically deadly, whereas somatic cell mutations are not. D) Somatic cell mutations are typically deadly, whereas gamete mutations are not. E) Mutations in both types of cells usually result in cancer.
During inhalation, the diaphragm moves upward. Indicate whether the statement is true or false