Examlex
Use the sequence feature of a graphing calculator to evaluate the sum of the first 10 terms of the arithmetic sequence.
Round to the nearest thousandth, if necessary.
-A stack of poles has 39 poles in the bottom row, 38 poles in the next row, and so on, with 6 poles in the top row. How many poles are there in the stack?
Endospores
Resistant, dormant structures formed within some bacteria, enabling survival in harsh environmental conditions.
Exotoxins
Potent toxins secreted by bacteria that can cause damage to the host by destroying cells or disrupting normal cellular metabolism.
Capsules
In microbiology, a gelatinous covering that encloses some bacteria, enhancing their ability to cause disease.
Sex Pili
Hair-like structures on the surface of bacterial cells that are involved in the transfer of DNA during conjugation.
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