What is an ophiuroid?
A) Sea urchins
B) Tunicate
C) Salps
D) Brittle stars
D
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A swim bladder is found in
A. sharks. B. whales. C. penguins. D. ray-finned fishes.
Forecast skill is very important because
A) operational people use the forecast to make decisions. B) the forecasters develop a bad attitude when they "bust" a forecast. C) the National Weather Service gets sued every time a forecast is bad. D) None of these–forecast skill is unimportant because no one believes any of the forecasts that are made anyway.
Black smokers emit water in excess of 350 degrees Celsius, but release water rather than steam. Why is this so? (Water normally turns to steam at 100 degrees Celsius)
a) The water surrounding the smokers cools down the emitted water b) The boiling point of water is much higher where black smokers occur due to higher pressure c) The benthic life associated with black smokers prohibits the water from vaporizing d) None of the above
For ecosystems, what specific step can reduce the impact of global temperature increase?
A) Establish efficient irrigation systems. B) Conservation of wetlands and biodiversity C) Implement immunization programs to prevent spread of diseases. D) Develop drought-hardy plants. E) Improve coastal dikes and canals.