Your Roommate Is Hostile, Very Competitive, and Pessimistic

question 56

Multiple Choice

Your roommate is hostile, very competitive, and pessimistic. On the basis of recent research, which of the following health problems is he most likely to experience later?

• A) cardiovascular disease
• B) immune system failures
• C) chronic infections
• D) cancer

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Definitions:

Nephridia

Excretory organs in many invertebrates, functioning in the elimination of metabolic wastes.

Insects

Small arthropods with a chitinous exoskeleton, three-part body, three pairs of jointed legs, compound eyes, and one pair of antennae.

Nephridiopores

External openings of nephridia, excretory organs found in some invertebrates, allowing waste to exit the body.

Nephridia

Excretory organs in many invertebrates, such as annelids, that remove metabolic wastes from an organism's body.