How Do Spirochetes and Spirilla Differ

question 49

Multiple Choice

How do spirochetes and spirilla differ?

• A) Spirilla are found in chains of cells whereas spirochetes exist as individual cells.
• B) Spirochetes do not have a cell wall but spirilla do.
• C) Spirochetes and spirilla are basically the same organisms and the terms can be used interchangeably.
• D) Spirilla have an external flagella but spirochetes have axial filaments.
• E) Spirochetes have a rigid, corkscrew shape while spirilla are helical and more flexible.

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Definitions:

Fixed Ratio

A schedule of reinforcement where a response is reinforced only after a specified number of responses, often used in behavioral studies.

Variable Interval

A reinforcement schedule where a response is rewarded after a variable and unpredictable time period has elapsed.

Fixed-interval Schedule

A timing-based reinforcement scheme where a specific time interval must elapse before a response is rewarded.

Reinforcement

In behavioral psychology, it refers to a process that increases the likelihood of a behavior by adding or removing a stimulus following the behavior.