Researchers Discover That a Species of Maple Tree Cannot Survive

question 12

Multiple Choice

Researchers discover that a species of maple tree cannot survive and complete its life cycle without tiny amounts of cadmium.For this tree,cadmium is a(n)

• A) macromolecule.
• B) macronutrient.
• C) essential element.
• D) amino acid.
• E) essential micronutrient.

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Definitions:

Democratic Forms

Pertains to the various methods and systems through which democracy is implemented and practiced, encompassing aspects like voting systems, public participation, and representative governance.

Trade Barriers

Measures implemented by governments to restrict or regulate international trade, including tariffs, quotas, and embargoes.

Wages

Payments made to employees for their labor or services, typically calculated on an hourly, daily, or piecework basis and paid on a regular schedule.

Environmental Regulations

Laws and policies designed to protect the environment from damage and pollution, often involving restrictions on emissions, waste management, and conservation efforts.