B) the input or output of material from a system
C) provides the average time that materials
spent circulating in a pool
D) can tend to slow a process
or to accelerate a process
E) refers to the amount at the current time
224. Which of the following is the types of positive interaction?
A) Predation, parasitism and antibiosis
B) Proto cooperation, mutualism and
competition
C) Commensalism, proto cooperation and mutualism
D) Interspecific, and intraspecific competition
E) Parasitism, competition and commensalism
225. Choose the correct ecosystem which is simple? Unstable and subjected to
human intervention and manipulation.
A) Temperate grassland
B)
African savanna
C) Tropical rainforest
D) Agricultural land
E)
Semi-arid desert
226. Choose the correct answer about standing stock
A) equation to determine how a system is changing over time
B) provides the average time that materials spent circulating in a pool
C) refers to the amount at the current time
D) gives feedback about processes
E) the input or output of material from a system
227. Choose the correct answer about mass balance
A) equation to determine how a system is changing over time
B) gives feedback about processes
C) refers to the amount at the current time
D) the input or output of material from a system
E) provides the average time that materials spent circulating in a pool
228. The mass balance equals sum of:
A) Input, output, and internal
exchange
B) Input and output
C) Input, output, and external exchange
D)
Input and external exchange
E) Input, internal and external exchange
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