The Fossils of a New Species of Reptile Are Found

question 38

Multiple Choice

The fossils of a new species of reptile are found in deposits dating to the Permian period.Later,scientists discover that fossils of the species changed somewhat over time,and can be found in deposits dating from the Permian period all the way up to the Cretaceous period.The fossils vary from one continent to another,but many seemingly intermediate forms are found,and the fossils are spread over most continents.The scientists' observations most strongly support which evolutionary models?

• A) allopatric speciation
• B) punctuated evolution
• C) adaptive radiation
• D) both allopatric speciation and adaptive radiation
• E) gradualistic evolution

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Definitions:

Single-Parent Homes

Households in which one parent is responsible for raising one or more children.

Income

The money received, especially on a regular basis, for work or through investments.

Parent-Child Interactions

The dynamic relationship between a parent and child characterized by communication, caregiving, and nurturing behaviors.

Family Structure

The composition and organization of a family unit, including the members and their roles.