According to the Results of Research Involving Twins and Family

question 30

Multiple Choice

According to the results of research involving twins and family members, which of the following has been suggested regarding sexual orientation?

• A) Homosexual men tend to have more gay relatives on their father's side of the family than on their mother's side of the family.
• B) If a child has one gay parent, the child's chance of being gay rises by approximately 70 percent, even if the child is not raised by that parent.
• C) Genes may play at least some role in determining a person's sexual orientation.
• D) Homosexual individuals have fewer homosexual siblings than heterosexual individuals because the siblings are able to observe the difficulties associated with being gay, and this encourages them to choose to be heterosexual.

Know the relationship between habitat characteristics and species diversity.

Describe the interactions between species, including competition, predation, and symbiotic relationships.

Grasp basic ecological concepts related to biodiversity, such as richness and ecosystem structure.

Recognize adaptive strategies of species for survival and competition avoidance.

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Definitions:

Color Constancy

The ability of the human visual system to perceive colors of objects, under varying lighting conditions, as being constant.

Red-tinted Glasses

Glasses with lenses that are tinted red, which can influence perception and mood, sometimes used experimentally to study the effects of colored light on human behavior.

Green Apple

A variety of apple that is generally green in color, often with a tart flavor, used both in cooking and consumed raw.

Trichromatic Theory

A theory of color vision that explains how humans perceive color through the response patterns of three types of cones in the retina, sensitive to short, medium, and long wavelengths of light.