What provides the raw material for large and complex food webs within an estuary?
a. The ocean bringing in nutrients
b. Salt-tolerant plants producing carbohydrates
c. Salt-tolerant plants being decomposed
d. The river depositing nutrient-rich sediments
ANS: C
Salt-tolerant plants in the estuary are able to grow very quickly. When they die, their decomposition
and the rapid turnover of nutrients become important in the ecosystem. This is a common
characteristic of estuaries. Information can be found in the section Marine Scientists Examples of
Marine Communities
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