Why is the survival of coral reefs threatened by human activities and environmental factors? Indicate whether the statement is true or false
Concepts to Consider: Briefly explain the proposed connection between human activities
such as fishing and mining. Possible environmental factors to discuss include how industrial
activities are leading to water pollution, the relationship between water temperature and
bleaching, and how reefs are being smothered by increases in silt in the water. Global
warming might also be included in the response.
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Figure 5-17 shows the approximate Km for the hydrolysis of ATP by helicase PcrA to be:
A. 3 µM. B. 5 µM. C. 10 µM. D. 15 µM. E. 20 µM.
John Snow's research during a cholera outbreak in London laid the foundation for which of the following branches of microbiology?
A. infection control only B. epidemiology only C. immunology only D. both infection control and epidemiology E. infection control, epidemiology, and immunology
Buffer solutions:
A. work best when the pH of the buffer is two pH units above its pKa. B. have a greater buffering capacity at lower concentrations. C. buffer best when almost entirely in the conjugate base form. D. have a characteristic Ka, which can be expressed as [HA]/[A-][ H3O+]. E. do not change very much when H3O+ and OH- are added.
The nutrients that a plant needs are for normal growth and development are acquired through the ____
a. Sun b. rain c. leaves d. roots e. bark