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Francis Crick’s theory of directed panspermia states that
Selected Answer: life was “seeded” on this planet by a civilization of life forms
superior to us.
“Natural selection is cybernetically blind”. This means that
Selected Answer: it does not comprehend the structural hierarchies it is required to
construct.
Charles Darwin’s view of the species was
Selected Answer: that populations of a species continually experienced new
variations and continually became more fit.
Romans 8 describes modern living organisms as
Selected Answer: being in bondage to decay.
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Which of the following is a component structure of a primary flight feather?
Selected Answer: the rachis
One feature of Enlightenment Thinking was the tendency to
Selected Answer: question traditions in the light of human reason.
To a design theorist a beneficial mutation
Selected Answer: would have to improve the quality of the design of the organism.
Which of the following represents an observation Charles Darwin made while reading
and voyaging the world?
Selected Answer: Individuals of a population, although of the same species, varied
slightly from each other for many of the traits he studied.
Which of the following phrases best evaluates the naturalistic hypothesis for its value in
explaining the origins of new structures like the flight feather?
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Selected Answer: Natural selection is unable to “see” a new useful biological
function while protecting a different existing function.
Preening behavior enables a bird to continue to fly successfully by
Selected Answer: repairing feather surface breaks between barbules.
One problem associated with evolving a system in which RNA bases code for amino
acids is that
Selected Answer: the correct bonding of amino acids to tRNAs requires protein
catalysis—we need mature proteins to begin making the first proteins.
Natural selection is an “expensive” process. This is true because
Selected Answer: many population members must die in order for a new favorable
mutation to replace older forms of the gene.
Directional selection
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Selected Answer: moves a population phenotypically in a new direction.
Natural selection is limited in its effectiveness in preserving new favorable mutations in
an environment that
Selected Answer: has cyclical variations in its environmental conditions.
One major problem with the speculation that the origin of life occurred at geothermal
vent is that
Selected Answer: amino acids formed there are of two types, D and L forms, yet
only L forms are found in living cells.
The sentence, “O you, who look on this our machine, do not be sad that with others you
are fated to die, but rejoice that our Creator has endowed us with such an excellent
instrument as the intellect” was first spoken by
Selected Answer: Leonardo da Vinci
The Design theorist comes to the conclusion that most mutations occurring today are
harmful because
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Selected Answer: they are deteriorative changes made to something that was
elegantly designed.
One popular evolutionary model for the origin of flight in vertebrates is that flight
evolved in
Selected Answer: animals that climbed and then glided down from trees.
Darwin interpreted his observations of nature to mean that
Selected Answer: individuals within populations compete with each other for limited
resources; some of these individuals will survive better than others.
In the evolutionary model, mutation ______ genes that will develop a better organism
while natural selection ______ genes that will develop a better organism.
Selected Answer: produces, finds
Directional selection has been used to
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Selected Answer: generate a small increase in the number of bristles on the thorax of
flies.
Stabilizing selection
Selected Answer: eliminates individuals with extreme phenotypes from the
population.
The role of the barbule in the primary flight feather is to
Selected Answer: limit airflow through the feather during the wing’s downstroke.
One important value that disruptive selection can have to a natural population is that it
Selected Answer: can eliminate rare individuals whose sexuality is intermediate
between male and female.
In the early pages of the Genesis record, the first stage of life history could best be
described as
Selected Answer: an initial “very good” creation.
