Sci101-1302b-02
SCI101-1302B-02 IP 2: Phase 2 Scientific Way of Thinking
Kenia Armida Aguilar-Banker
CTU Online
Professor Nicholas Kusina
‘
SCI101-1302B-02 IP 2: Phase 2 Scientific Way of Thinking
Evolution is and ongoing process of change and diversification which every scientist to this day accept as a historical fact. However, evolution is a very controversial subject worldwide. There are many studies, theories, and opinions regarding how we became to be, including every living creature and human being, the universe and everything else that comes along with it, and especially how our planet Earth transformed into what it is today. Phyletic gradualism and punctuated equilibrium are two very controversial and debatable theories/concepts that have brought up lots of questions, opinions, and answers. Gradualism and punctuated equilibrium are two different concepts that seem to intertwine along each other’s path. In this IP 2 I will explain both theories.
Phyletic Gradualism is a theory that states that evolutionary change happens very slowly, steadily (by a process called anagesis) and gradually in an attempt of the species to continue to adapt to new challenges over the course of their history until they became (gradually) a new species different from their ancestors. In phyletic gradualism, evidence should appear throughout the fossil records with few to no gaps in between. Some very important aspects of gradualism are that new species happens from the transformation of an ancestral population into the new, customized descendants. The transformation happens evenly and slowly, and it involves the greater part of the ancestral population. Most importantly it occurs over the ancestral species geographic area.
Punctuated Equilibrium is the theory/concept that describes an evolutionary change happening rapidly and in brief geological events in between the long periods of (stasis) or (equilibrium) usually consisting of a few hundred to a few thousand years, which is followed
Kenia Armida Aguilar-Banker
CTU Online
Professor Nicholas Kusina
‘
SCI101-1302B-02 IP 2: Phase 2 Scientific Way of Thinking
Evolution is and ongoing process of change and diversification which every scientist to this day accept as a historical fact. However, evolution is a very controversial subject worldwide. There are many studies, theories, and opinions regarding how we became to be, including every living creature and human being, the universe and everything else that comes along with it, and especially how our planet Earth transformed into what it is today. Phyletic gradualism and punctuated equilibrium are two very controversial and debatable theories/concepts that have brought up lots of questions, opinions, and answers. Gradualism and punctuated equilibrium are two different concepts that seem to intertwine along each other’s path. In this IP 2 I will explain both theories.
Phyletic Gradualism is a theory that states that evolutionary change happens very slowly, steadily (by a process called anagesis) and gradually in an attempt of the species to continue to adapt to new challenges over the course of their history until they became (gradually) a new species different from their ancestors. In phyletic gradualism, evidence should appear throughout the fossil records with few to no gaps in between. Some very important aspects of gradualism are that new species happens from the transformation of an ancestral population into the new, customized descendants. The transformation happens evenly and slowly, and it involves the greater part of the ancestral population. Most importantly it occurs over the ancestral species geographic area.
Punctuated Equilibrium is the theory/concept that describes an evolutionary change happening rapidly and in brief geological events in between the long periods of (stasis) or (equilibrium) usually consisting of a few hundred to a few thousand years, which is followed
References: www.biology-online.org www.talkorigings.org www.pbs.org www.ideacenter.org www.nap.org