Scientists Believe They Know the Average Global Temperature Over the Last

question 21

Multiple Choice

Scientists believe they know the average global temperature over the last 160,000 years.Which property of the ice core samples from Antarctica provides this information?

• A)the thickness
• B)the carbon dioxide concentration
• C)the ¹H/²H ratio
• D)the temperature

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Definitions:

Attractive Mate

An individual selected based on traits perceived as desirable, enhancing reproductive success in natural and sexual selection.

Disruptive Selection

A type of natural selection that favors extreme values of a trait over intermediate values, leading to two or more contrasting phenotypes in the population.

Stabilizing Selection

Mode of natural selection in which an intermediate form of a trait is adaptive, and extreme forms are selected against.

Prenatal Care

Medical and healthcare provided to a pregnant woman before delivery, aiming to ensure the health of both the mother and the developing fetus.