There Are Advantages and Disadvantages to Adaptations

question 42

Multiple Choice

There are advantages and disadvantages to adaptations. Animals that are endothermic are likely to be at the greatest disadvantage in ________.

• A) very cold environments
• B) very hot environments
• C) environments with a constant food source
• D) environments with variable and limited food sources

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Definitions:

Polygenic Traits

Traits that are influenced by more than one gene, resulting in a wide range of phenotypes, such as height and skin color.

Genes

The units of heredity made up of DNA that carry information responsible for the expression of traits from parents to offspring.

Twins

Two offspring produced by the same pregnancy. Twins can be identical (monozygotic) or fraternal (dizygotic).

Klinefelter Syndrome

A chromosomal disorder found among males that is caused by an extra X sex chromosome and that is characterized by infertility and mild intellectual disabilities.