The theory of evolution is based on the idea that all species are related and gradually change over time. Evolution relies on there being genetic variation in a population which affects the physical characteristics (phenotype) of an organism.
The theory of evolution by natural selection, first formulated in Darwin’s book “On the Origin of Species” in 1859, is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits. The “theory of evolution” is actually a network of theories that created the research program of biology. Darwin, for example, proposed five separate theories in his original formulation, which included mechanistic explanations for: populations changing over generations. gradual change.
Many scientists and philosophers of science have described evolution as fact and theory. Scientists describes fact in science as meaning data, not known with absolute certainty but “confirmed to such a degree that it would be perverse to withhold provisional assent”. A scientific theory is a well-substantiated explanation of such facts. The facts of evolution come from observational evidence of current processes, from imperfections in organisms recording historical common descent, and from transitions in the fossil record. Theories of evolution provide a provisional explanation for these facts.
For this discussion we will explore the veracity of several theories of evolution. For this assignment you will do reach in each of the following theories of evolution.
The Theory of Evolution via Natural Selection
Survival of the fitness
The Tree of Life
Evolution as such
Common descent
Gradualism vs punctuated equilibrium
Discussion Topics:
Types of evidence for evolution, such as historical geology, paleontology, embryology, hematology, serology, human genetics, cytology etc.
Methods of dating remains of the past
Mechanisms of evolution: evolution by natural selection and factors producing variation in organisms
Time perspective in the historical geological and paleontological record.
The taxonomic classification of humans. Where do we fit in relation to the other animals?
Major evolutionary trends, especially in the Primate Order.
Discussion Questions:
Briefly explain each of the above theories of evolution (You can use outside academic sources to support your arguments)
Is evolution a fact or a theory?
What evidence scientists have to support each theory?”
What are some critiques or failures for each theory?
Which theory is more convincing to you? Why?