The Convergence in External Morphology of Sharks,penguins,and Porpoises Is Attributed

question 30

Multiple Choice

The convergence in external morphology of sharks,penguins,and porpoises is attributed to  

• A) reduced genetic variability in these groups.
• B) selection pressures that are common to these groups.
• C) reproductive isolation of these groups.
• D) identical genes in all three groups.
• E) use and disuse of the limbs.

---

Definitions:

Caution Signals

Warning signs or indicators that suggest a need for careful consideration or attention to avoid potential problems or dangers.

Body Angle

Refers to the positioning of one's body, which can convey nonverbal messages or attitudes during interpersonal communications.

Source Of Communication

The origin or starting point from which information is sent to a receiver in the communication process.

Producer/Manufacturer

An entity or individual responsible for creating and producing goods or services to meet consumer demand.