Biology 1013 Exam 4 – Questions & A+ Solutions
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Terms in this set (48)
Define "evolution". Change over time; the process by which modern
organisms have descended from ancient organisms
Define "microevolution". Small changes overtime within a species.
Define "macroevolution(speciation)". Overtime, groups of organisms changed so much
that they can no longer reproduce with the original
group.
Define "adaptation". A trait that allows an organism to survive and
reproduce
Define "variation". Individuals have different traits
Define "mutation". Change in DNA. Most changes have no effect, some
are lethal, a few make an individual more adapted.
Define "competition". Competing for limited resources
Define "species". Mayr = "Species are groups of interbreeding natural
populations that are reproductively isolated from
other such groups." Offspring are fertile. (Ex: Horse +
Donkey = Mule)
Define "fitness". Ability of an individual to survive and reproduce in its
environment.
, Who was Charles Darwin and the Charles Darwin:
other scientists' contributed to - Father of Evolution
evolution? - 1809, HMS Beagle, Galapagos Island,
- 1865, published On the Origin of Species before
Alfred Wallace released his similar work
Lamarck: Inheritance of acquired characteristics/ Use
and Disuse
Hutton: Geological forces occur over long periods of
time
Malthus: population increases FASTER than the
resources -> competition
What were Darwin's Four Tenets 1. More organisms are made than the environment
(ideas)? can support -> Competition
2. There is a variation among offspring:
preadaptation. (Ex: eyes- blue, green, brown)
3. Natural selection survival of the fittest.
Environment selects AGAINST traits. Climate,
weather, competition predators, pollution. (Ex.
Peppered Moth and Industrial Melanism).
4. Individuals that have desirable traits are more fit
and leave more offspring
What is the evidence for evolution? Homologous structure, fossil record, similarities in
DNA
What is Hardy-Weinberg equilibrium? Mathematical formula that Demonstrates the
occurrence of natural selection by demonstrating a
change in gene frequency.
What were the assumptions during the Large population, Random mating, No mutation, No
Hardy-Weinberg Equilibrium? migration, No natural selection
Save Groups
Terms in this set (48)
Define "evolution". Change over time; the process by which modern
organisms have descended from ancient organisms
Define "microevolution". Small changes overtime within a species.
Define "macroevolution(speciation)". Overtime, groups of organisms changed so much
that they can no longer reproduce with the original
group.
Define "adaptation". A trait that allows an organism to survive and
reproduce
Define "variation". Individuals have different traits
Define "mutation". Change in DNA. Most changes have no effect, some
are lethal, a few make an individual more adapted.
Define "competition". Competing for limited resources
Define "species". Mayr = "Species are groups of interbreeding natural
populations that are reproductively isolated from
other such groups." Offspring are fertile. (Ex: Horse +
Donkey = Mule)
Define "fitness". Ability of an individual to survive and reproduce in its
environment.
, Who was Charles Darwin and the Charles Darwin:
other scientists' contributed to - Father of Evolution
evolution? - 1809, HMS Beagle, Galapagos Island,
- 1865, published On the Origin of Species before
Alfred Wallace released his similar work
Lamarck: Inheritance of acquired characteristics/ Use
and Disuse
Hutton: Geological forces occur over long periods of
time
Malthus: population increases FASTER than the
resources -> competition
What were Darwin's Four Tenets 1. More organisms are made than the environment
(ideas)? can support -> Competition
2. There is a variation among offspring:
preadaptation. (Ex: eyes- blue, green, brown)
3. Natural selection survival of the fittest.
Environment selects AGAINST traits. Climate,
weather, competition predators, pollution. (Ex.
Peppered Moth and Industrial Melanism).
4. Individuals that have desirable traits are more fit
and leave more offspring
What is the evidence for evolution? Homologous structure, fossil record, similarities in
DNA
What is Hardy-Weinberg equilibrium? Mathematical formula that Demonstrates the
occurrence of natural selection by demonstrating a
change in gene frequency.
What were the assumptions during the Large population, Random mating, No mutation, No
Hardy-Weinberg Equilibrium? migration, No natural selection
