A Community May Undergo a Regime Shift or a Phase

question 30

Multiple Choice

A community may undergo a regime shift or a phase shift when ______________

• A) lose keystone species or suffer a major climatic change
• B) all invasive and exotic species are removed
• C) they suffer a natural fire or flood
• D) pollutants cause a rapid rise in mutations
• E) have too many symbiotic relationships among species

Describe the psychological and social aspects of aging, including Erikson's theory.

Delineate the categorization of the elderly (young-old, old-old, oldest-old) and their characteristics.

Understand the impact of societal attitudes towards aging, including ageism and elderspeak.

Explain the concept of primary and secondary aging.

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Definitions:

Salivary Amylase

An enzyme found in saliva that starts the process of breaking down starches into sugars during digestion.

Pyloric Pump

A mechanism involving the pylorus, the region of the stomach that connects to the small intestine, which regulates the passage of digestive contents into the intestine.

Pyloric Opening

The opening from the stomach into the duodenum, regulated by the pyloric sphincter to control the passage of digested food.

Chyme

A semi-fluid mass of partly digested food that moves from the stomach to the small intestine.