Texas FFA Livestock Judging PracticeTest

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Enhance your skills in livestock judging with the Texas FFA Livestock Judging Test. Utilize flashcards and multiple choice questions, with hints and explanations to prepare effectively. Ace your exam!

Practice this question and more.

Which of the following minerals is categorized as a macro mineral?

Iron
Calcium
Zinc
Cobalt

The correct answer is: Calcium

Calcium is categorized as a macro mineral because it is required by the body in larger amounts compared to trace minerals. Macro minerals play essential roles in various physiological functions, including the formation of bones and teeth, muscle contraction, and nerve transmission. Calcium is particularly vital for maintaining bone density and structure, which is critical for overall health in both livestock and humans. The body needs significant quantities of calcium to ensure that these vital processes can occur effectively, thus classifying it as a macro mineral. In contrast, the other options—iron, zinc, and cobalt—are considered trace minerals, which are needed in much smaller quantities but are still crucial for various biological functions.