Why Are Most Food Chains Limited to Three to Five

question 57

Multiple Choice

Why are most food chains limited to three to five trophic levels?

• A)The higher the trophic level, the larger the organism; the larger the organism, the less likely it will be prey.
• B)The nutritional quality of existing biomass decreases with increasing trophic level.
• C)Most ecosystems have insufficient space to support the increased number of organisms that more trophic levels would require.
• D)There is insufficient energy to support more trophic levels.

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