In the food relationship where the lion eats the wilde beest, and the wilde beast eats plants____________?
A. The lion is the prey and the wilde beast is the predator
B. The lion is the predator and the wilde beast is the prey
C. The lion is the primary consumer and the wilde beast is the secondary consumer
D. The lion is the secondary consumer and the wilde beast is the primary consumer
Valuable, practical services that help to preserve ecosystem performed by nature are called____________?
A. Ecosystem service
B. Biological control
C. The green house effect
D. Biosphere balancing
Our seasons are caused by______________?
A. The changing distance between the earth and the sun
B. The angle at which sunlight reaches the earth
C. The length of the daylight hours
D. All of the above
E. Only (b) and (c) are correct
During an equinox_____________?
A. The days and nights are of equal length except at the poles
B. At noon the sun is overhead at the equator
C. The earth is not tilted toward nor away from the sun
D. All of the above
The main reason(s) for warm summers in northern middle latitudes is that ______________?
A. The earth is closer to the sun in summer
B. The sun is higher in the sky and we receive more direct solar radiation
C. The days are longer
D. All of the above
E. Only (b) and (c) are correct
All the statements are correct regarding ecological succession except _____________?
A. It is a random process
B. Species diversity increases as succession proceeds
C. The food chain relationships becomes more complex
D. The role of decomposers becomes more and more important
Suppose yesterday morning you noticed ice crystals (frost) on the grass, yet the minimum temperature reported in the newspaper was only 35o F. The most likely reason for this apparent discrepancy is that ________________?
A. Temperature readings are taken in instrument shelters more than 5 feet above the ground
B. The thermometer was in error
C. The newspaper reported the wrong temperature
D. The thermometer was read before the minimum temperature was reached for that day
E. The thermometer was read incorrectly
A biomass pyramid is important because it illustrates______________?
A. How energy flows through a food web
B. The number of species in each tropic level
C. The biomass of all organisms at each tropic level in a system
D. The number of tropic levels in a system
Killing of animals disturbs__________?
A. Good for eco system
B. Good for man
C. The balance of nature
D. None
The earth’s radiative equilibrium temperature is_________________?
A. The temperature at which the earth is absorbing solar radiation and emitting infrared radiation at equal rates
B. The temperature at which the earth is radiating energy at maximum intensity
C. The average temperature the earth must maintain to prevent the oceans from freezing solid
D. The temperature at which rates of evaporation and condensation on the earth are in balance
