A Ring Species Evolves Due to a Process of Speciation

question 26

Multiple Choice

A ring species evolves due to a process of speciation that unfolds when:

• A) There are distinct forms of a species (subspecies) that are capable of producing fertile hybrids
• B) Subspecies are arranged across a temperature gradient
• C) Subspecies are arranged along a geographic gradient
• D) The arrangement of the ring species is such that the two ends of the gradient themselves meet and where they do those individuals do not interbreed.

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Definitions:

Recall

The act of retrieving information or memories from the past, an important aspect of cognitive function.

Three-Box Model

A model of memory that suggests information is processed through three stages: sensory, short-term, and long-term memory.

Sensory Register

The component of memory that holds incoming information from the senses for a very short period of time, allowing initial processing.

Implicit Memory

A type of memory that enables us to perform tasks without conscious awareness of these previous experiences, such as riding a bike.