GED Science Practice

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Prepare for the GED Science Exam with our comprehensive quizzes featuring flashcards and multiple-choice questions. Each question includes hints and explanations to help you grasp essential concepts and succeed.

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What is the term for an aerobic rod-shaped spore-producing bacterium?

Autotroph
Auxin
Bacillus
Bacteria

The correct answer is: Bacillus

The term "Bacillus" refers specifically to a genus of rod-shaped bacteria that are capable of producing spores and thrive in aerobic (oxygen-rich) environments. This genus is well-known for its ability to form endospores, which are highly resistant structures that allow the bacterium to survive extreme environmental conditions, such as heat and desiccation. These spores can remain dormant for long periods, allowing the bacteria to preserve their lineage until conditions are favorable for growth again. Bacillus species can play significant roles in various ecological processes, and some are even used in biotechnology and agriculture due to their beneficial properties. Understanding these characteristics helps in distinguishing them from other types of microorganisms.