Which of the Following Is True of an Ecosystem

question 10

Multiple Choice

Which of the following is true of an ecosystem?

• A)An ecosystem is always relatively small.
• B)Changes in one part of an ecosystem will always produce changes in the other parts.
• C)Human-induced changes in an ecosystem seldom have a major negative effect.
• D)A self-sufficient ecosystem interacts with other ecosystems at the overlap of their borders.

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Definitions:

Sodium

A soft, silvery-white, highly reactive metal that is found in many salts, essential for nerve and muscle function in the human body.

Moles

The SI unit that measures the amount of substance, defined as containing exactly 6.02214076×10^23 particles, such as atoms or molecules.

Stoichiometry

The calculation of reactants and products in chemical reactions based on the conservation of mass.

Chemical Reactions

Processes in which one or more substances, the reactants, are converted to one or more different substances, the products.