Identify a Style Rule That Applies Only to the Th

question 30

Multiple Choice

Identify a style rule that applies only to the th element, and not to the td elements, and uniquely formats the table header elements to have a dark gray background and white text.

• A) { background-color: #1D1D1C; color: #FFFFFF; }
• B) th { background-color: #1D1D1C; color: #FFFFFF; td: 0; }
• C) th, td:0{ background-color: #1D1D1C; color: #FFFFFF; }
• D) th { background-color: #1D1D1C; color: #FFFFFF; }

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Definitions:

Surviving Offspring

The number of offspring that live to reproductive age, serving as a measure of an individual's fitness in evolutionary biology.

Hamilton's Rule

A principle stating that an act of altruism is favored by natural selection if the genetic gain of the recipient, discounted by the relatedness between the altruist and the recipient, exceeds the cost to the altruist.

Adaptive

Traits or behaviors that enhance an organism's ability to survive and reproduce in its environment.

Multilevel Selection

A concept in evolutionary biology that argues selection operates not just on individuals, but also on groups, genes, or traits at different biological hierarchy levels.