What are the 2 commonalities of all life? - ANSWERSall life possesses DNA/RNA
And All life evolved
Evolution: - ANSWERSdescent with modification. Change in the properties of populations of organisms, or groups of such populations, over the course of generations
Evolutionary biology applies i...
Evolution Exam 1 Dr. Kajiura Questions
& Answers
What are the 2 commonalities of all life? - ANSWERSall life possesses DNA/RNA
And All life evolved
Evolution: - ANSWERSdescent with modification. Change in the properties of
populations of organisms, or groups of such populations, over the course of generations
Evolutionary biology applies in? - ANSWERSHealth sciences, Agriculture, Natural
products, Conservation and environmental Management, and in understanding
ourselves. Entertainment
Evidence of Evolution - ANSWERSMicro, Speciation, Macro, and common ancestry
Evidence of Microevolution - ANSWERSChange through time
Evidence of Speciation - ANSWERSNew lineages from old
Evidence of Macroevolution - ANSWERSNew forms from old
Evidence of Common Ancestry - ANSWERSAll life forms are related
Evidence of Microevolution Examples - ANSWERSSelective breeding
Direct observation
Vestigial structures
Evidence of Speciation examples - ANSWERSNatural Populations
Lab experiments
Evidence of Macroevolution examples - ANSWERSExtinction and Succession
Transitional forms
Evidence of Common Ancestry examples - ANSWERSHomology
law of succession - ANSWERSGeneral pattern of correspondence between fossil and
living forms from the same locale; same region
Transformational Forms - ANSWERSfossil record captures evidence of transmutations
in progress. Fossils show mix features including traits of ancestral populations and
novel traits seen later in descendants
, Homology - ANSWERSStudy of likeness. Same organ in different animals under every
variety of form and function
Structural Homology - ANSWERSUnderlining design or structure of organisms are
similar yet function and appearance differ
processed pseudogenes - ANSWERSThe earlier the ancestor in which
a processed pseudogene arose, the more descendant species will have inherited
it. Some descendants may have lost the pseudogene by deletion of the entire
sequence, but if we examine enough species the overall pattern should be clear.
Uniformitarism - ANSWERSClaim that geological process taking place now worked
similarly in the past; Direct challenge to catastrophism
Catastrophism - ANSWERSHypothesis that today's geological formations resulted from
catastrophic events in the pst on a scale never observed now
Radiometric dating - ANSWERStechnique using unstable isotopes of naturally occurring
elements. They decay to different isotopes or elements and can be measured using half
life functioning as natural clocks since they are not affected by temperature, moisture or
any other environmental factors.
What was Darwin's theory? - ANSWERSDescent with modification provides an
explanation for the pattern of unity and diversity in living organisms; Species have
similar features because they evolve from a common ancestor
What was the second part of Darwin's theory of evolution - ANSWERSNatural selection
is the mechanism that results in adaptation; Species are different because unique traits
are favored in contrasting environments
Mechanism of natural selection - ANSWERS1. Individuals within a population differ from
one another
2. These differences are heritable
3. Some individuals survive and reproduce more successfully than others
4. These successful individuals succeed because of variant traits that they inherited
Natural selection acts on what? - ANSWERSNatural selection acts on individuals, but its
consequences occur in populations
Natural acts on phenotypes or genotypes? - ANSWERSNatural selection acts on
phenotypes, but evolution consists of changes in allele frequencies
Natural selection acts on... - ANSWERSexisting traits but new traits can evolve
Is natural selection random? - ANSWERSnatural selection is non-random but not
progressive
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