In Order for Allopatric Speciation to Occur,first There Must Be

question 20

Multiple Choice

In order for allopatric speciation to occur,first there must be a geographic separation of two populations of the same species.The second step requires:

• A)additional extrinsic isolating mechanisms to become involved.
• B)an increase in gene flow between the populations.
• C)physical and behavioral changes that keep them from interbreeding.
• D)physical and behavioral changes that permit occasional hybridization.

---

Definitions:

Query Design Grid

A visual tool used in database applications to facilitate the creation of queries by allowing users to graphically select and arrange tables and fields.

Query Tools Design

Refers to the process involved in creating software tools used for searching, filtering, and analyzing data within a database.

Navigation Pane

A user interface element that provides quick access to various functions or areas within a software application.

Datasheet

A document summarizing the performance and other technical characteristics of a product, typically in a table format.