Question
Biology Question on Eco-System
Which of the following processes will be most adversely affected if microorganisms are removed from a forest ecosystem?
A
Solar energy fixation and nutrient cycling
B
Decomposition of organic matter and photosynthesis
C
Nitrogen-fixation and decomposition of organic matter
D
Carbon assimilation and nitrogen-fixation
Answer
Nitrogen-fixation and decomposition of organic matter
Explanation
Solution
If microbes are removed from a forest ecosystem, nitrogen-fixation and decomposition of organic matter will be high affected. There are many nitrogen-fixing microbes involved in biological nitrogen-fixation.
Bacteria and fungi secrete enzymes to degrade organic matter into simpler inorganic substances.