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Terms in this set (47)
Prior to the 1800's people believed _____
species had remained unchanged since the time of creation
the father of taxonomy who gave us the system of binomial nomenclature is
Lamarck supported the idea of
inheritance of acquired characteristics
The first to suggest that some species known only from the fossil record had become extinct was
Charles Darwin based his conclusions about natural selection on all of the following
animals adapted to local environments,
competition for resources,
the outcome of artificial selection by humans
Which of the following is biochemical evidence that supports the theory of common descent?
Use of the same DNA triplet code and the same 20 amino acids in the protein of all organisms.
Which of the following is an example of a vestigial structure?
Whale pelvic bone
Analogous structures _____.
serve the same function
what is true about homologous structures
Homologous structures are anatomically similar.
Homologous structures are inherited from a common ancestor.
Homologous structures may be seen during embryonic development.
Anatomical structures that are fully developed in one group of organisms but are reduced and have no function in similar groups are called _____.
Darwin would not have used _____ evidence to support his hypothesis of common descent.
After separation of the continents, marsupials diversified into many different forms in _____ because there were few, if any, placental mammals present.
inheritance of acquired traits -
When humans determine which animals will reproduce, _____ selection takes place.
Who proposed that the available resources were not sufficient for all members of a population to survive?
The heavy beak of the large ground-dwelling finches is suited to a diet of _____.
Marsupials are found in Australia, South America and North America. Scientists are collecting evidence to determine where marsupials may have originated and how they may have migrated and spread to different areas of the earth. These studies would be considered:
Lyell's theory that the Earth's geological changes are the result of slow changes that occur at a uniform rate is known as _____.
Common misconceptions about evolution include all of the following
There are no transitional fossils.
Evolution proposes that changes in life are a consequence of random events.
Evolution is not observable or testable and is therefore not science.
The variation in Hox genes is responsible for the:
wide range of different body plans of animals.
Erasmus Darwin suggested the possibility of evolotuin based in the presence of
A natural process resulting in the evolution of organisms best adapted to the environment.
are evolved traits that increase an organisms chances of survival
a structure that is similar in different types of organisms because these organisms descended from a common ancestor
structure that has a similar function in separate lineages but differs in anatomy and ancestry
all organisms have certain
biochemical molecules and a body plan encoded in genes share in common suggesting relatedness.
orchestrate the development of the body plan in all animals
which scientists info on geology helped support the observations Darwin made during his voyage aboard the HMS beagle
according to the theory of inheritance of acquired characteristics,
if a man loses his hand then his children will also be missing a hand
changes in the phenotype are passed on by way of the genotype to the next generation
organisms are able to bring about a change in their phenotype
and evolution is striving toward improving particular traits
why was it helpful to Darwin to learn that Lyell thought the earth was very old?
it meant there was enough Time for evolution to have occurred slowly
the distribution of organisms across earth is known as
compete with other members of their species, differ in fitness, are adapted to their environment, and are related by descent from common ancestors
components of evolution by natural selection
variation exists within a population, oraganisms compete for resources, individuals have different reproductive success, organisms adapted due to environmental changes.
a key biogeographical observation made by Darwin was
the variation that exists among the finches
if evolution occurred we would expect different biogeographical regions with similar environments to
each have its own specific mix of plants and animals
and have plants and animals with similar adaptations
humans are able to cause organisms to evolve through which mechanism
its possible to trace the evolutionary ancestry of a species
fossil, biochemical,developmental, and anatomical evidence
a group of related species has homologous structures
fossil, anatomical, and developmental evidence
the same types of molecules are found in all living organisms
all vertebrate embryos have pharyngeal pouches
anatomical and developmental evidence
transitional fossils have been found between some major groups of organisms
Thomas malthus -
principles of population
series of catastrophes explains fossils record
classified organisms according to the Scala nature
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