Which of the Following Is Considered an Age-Related Change in the Physical

question 10

Multiple Choice

Which of the following is considered an age-related change in the physical apparatus of the eye of an elderly person?

• A)the retina of a 60-year-old person receives a third as much light as a 20-year-old person
• B)the optic nerve becomes more efficient in transmitting nerve impulses to the brain
• C)the lens of the eye becomes thinner and more transparent
• D)the elderly are less able to distinguish colors

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Definitions:

Carnivore

An animal that mainly feeds on other animals; a mammal belonging to order Carnivora (e.g., wolves or seals).

Photosynthetic Organisms

Organisms capable of photosynthesis, a process that converts light energy into chemical energy, sustaining the food chain.

Autotroph

An organism that synthesizes complex organic compounds from simple inorganic raw materials; also called producer or primary producer. Compare with heterotroph. See chemoautotroph and photoautotroph.

Saprotroph

A saprotroph is an organism that feeds on or derives nourishment from decaying organic matter, essential for nutrient cycling in ecosystems.