Why is the process of peer review critical to scientific inquiry?
a. It protects scientists from being sued.
b. It gives scientists a patent for their ideas and methods.
c. It helps ensure that the research in a scientific paper is original, significant, logical, and thorough.
d. It provides a venue where scientists can publish their materials and protocols for use by other scientists who want to do the same research.
c. It helps ensure that the research in a scientific paper is original, significant, logical, and thorough.
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Which of the following statements is false?
A. It is not possible to eradicate a disease. B. Global travel spreads pathogens more quickly than ever before. C. The evolution of drug-resistant pathogens is on the rise. D. Failure to follow treatment regimens drives the evolution of drug resistance. E. Scientists are engaged in an evolutionary arms race with disease-causing organisms.
If you were given the task of choosing a biological control agent for a reed from eastern China that has become invasive in the southeastern U.S., what do you think would be the best choice? Consider both the effectiveness and the safety of the agent you be releasing.
A. A generalist beetle, native to the U.S., that can consume massive quantities of the reed in a few weeks. B. A nematode, native to eastern China, that specializes on the reed but can take up to two years to kill a plant. C. A caterpillar, native to the U.S., that normally eats close relatives of the weed, but has been found in lab trials to perform better on the Chinese reed. D. A fungal pathogen from eastern China that specializes on the reed and can kill a plant in a few months.
Imagine you are a biologist with the task of genetically engineering a cow to survive on an alien planet. The planet has twice the gravity of Earth, the partial pressure of O2 is twice as high as that of Earth, and the partial pressure of CO2 is 100 times that of Earth. The planet is very dry, with an extremely low relative humidity. What changes would you make to the circulatory and respiratory
systems to accommodate these differences and allow your cow to function? What will be an ideal response?
Which of the following becomes more abundant deeper into the conducting zone (from bronchi to bronchioles)?
A) cilia B) type I alveolar cells C) cartilage D) goblet cells E) smooth muscle