It is in Mecca, Saudi Arabia
The answer is D.
Factor production that could be changed during particular period is called Variable Factor of Productions.
Basically, factor of productions is divided to fixed and variable factor.
FIxed factors are the one that will always stay the same no matter how many products you made. For example electricity cost, building rent, etc
The variable factors differ depend on how product you produce, such as raw material.
in the course of fish evolution, two of the gill slits slowly advanced into the jaws.
The evolution of fish started about 530 million years in the past at some point during the Cambrian explosion. It become during this time that the early chordates advanced the cranium and the vertebral column, main to the first craniates and vertebrates. the first fish lineages belong to the Agnatha or jawless fish.
The earliest fish, corresponding to living hagfish, developed about 550 million years in the past. Diversifications that in the end advanced in fish include an entire vertebral column, jaws, and an endoskeleton manufactured from bones in preference to cartilage. Fish live in the course of the sea and in freshwater lakes and streams.
New studies have uncovered the genetic foundation of gill covers in fish, which came about over 430 million years ago. It sheds light on one of the most essential evolutionary traits for fish, in addition to over vertebrates.
In jawless fishes, a sequence of gills opened behind the mouth, and those gills became supported by way of cartilaginous elements. the primary set of these elements surrounded the mouth to shape the jaw.
Learn more about the evolutions of fishes here: brainly.com/question/1426050
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Answer:
Selective retention, is the right answer.
Explanation:
Selective retention is a term which is used to describe the process through which an individual tends to remember those messages, facts, thoughts, beliefs and values, which are closer to their interests. This process is usually studied in marketing as a part of consumer behavior. In marketing, buyers used to remember information which supports their beliefs and values and forget messages or information that do not favor their beliefs.
