Use the Following Figure to Answer the Question

question 40

Multiple Choice

Use the following figure to answer the question.

Consider the global nitrogen cycle depicted in the figure. How are humans altering this cycle?

• A) industrial nitrogen fixation
• B) nitrogen lost to the atmosphere
• C) reduction of nitrogen available to terrestrial ecosystems
• D) reduction of nitrogen fixation by bacteria

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Definitions:

Sensory Adaptation

The process by which sensory receptors become less sensitive to constant stimuli, allowing organisms to focus on changes in their environment.

Skin Senses

The sensory modalities including touch, temperature, pain, and proprioception that inform an individual about the external environment via the skin.

Expectations

Beliefs or anticipations about the way events, behaviors, or outcomes should happen, often influencing perceptions and behaviors.

Papillae

Small, nipple-like projections on the tongue where taste buds are located, involved in the sense of taste.