Once a Nutrient Enters an Ecosystem, It

question 51

Multiple Choice

Once a nutrient enters an ecosystem, it

• A) must remain in that ecosystem.
• B) can cycle endlessly in that ecosystem.
• C) must leave that ecosystem to enter into an organism.
• D) cannot leave that ecosystem.
• E) can only leave that ecosystem if it is carried by a living organism.

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Definitions:

Ionic Bonds

Chemical bonds formed between two ions with opposite charges, typically between a metal and a non-metal, where one atom transfers electrons to another.

Phytoremediation

The use of plants to remove, degrade, or contain environmental contaminants in soil, water, or air.

Poplar

A type of fast-growing tree belonging to the genus Populus, known for its softwood used in manufacturing and as an ornamental tree.

Sieve Element

A type of cell found within the phloem of vascular plants, responsible for transporting sugars and other nutrients throughout the plant.