BIO 101 NVCC FINAL EXAM QUESTIONS
WITH CORRECT DETAILED ANSWERS ||
100% GUARANTEED PASS!!
<RECENT VERSION>
1.Habitat loss, natural catastrophes, and/or excessive harvesting of a species often
result in:
A. increased mutation rates
B. population bottlenecks
C. increased fitness of individuals
D. artificial selection
E. increased gene flow - ANSWER ✔ B. population bottlenecks
2. The process by which allele frequencies are altered in a population due to
chance is called:
A. random evolution
B. assortative evolution
C. genetic drift
D. random mutation
E. fitness - ANSWER ✔ C. genetic drift
3. In general, each species of fruit fly in the Hawaiian archipelago is restricted to a
single island. One hypothesis to explain this pattern is that new species formed
after a small number of flies colonized each new island. This mechanism is called:
A. sexual selection
B. genetic equilibrium
C. artificial selection
D. the founder effect
E. assortative mating - ANSWER ✔ D. the founder effect
,4. Imagine a population of monkeys in South America whose habitat has been
reduced to the point where only 20 individuals survive. This is an example of:
A. genetic drift
B. the founder effect
C. natural selection
D. a population bottleneck
E. sexual selection- - ANSWER ✔ D. a population bottleneck
5. Evolution by genetic drift is most obvious in:
A. large populations
B. aquatic organisms
C. small populations
D. invertebrate species
E. migratory species - ANSWER ✔ A. large populations
6. The extreme loss of genetic diversity that has occurred in cheetah populations
due to overhunting is the result of:
A. the founder effect
B. a population bottleneck
C. coevolution
D. genetic drift
E. natural selection - ANSWER ✔ B. a population bottleneck
7. Before the modern era of science, organisms were assigned to species on the
basis of:
A. behavioral similarities
B. the existence of fossils of earlier forms
C. their capability of interbreeding
D. similarities in appearance
E. geographic location - ANSWER ✔ D. similarities in appearance
The biological concept of species requires that:
A. organisms are morphologically similar
B. geographic isolation occurs
C. organisms reproduce sexually
D. only asexual reproduction occurs
E. individuals are able to reproduce outside the group - ANSWER ✔ C. organisms
reproduce sexually
,8. One species of fish feeds in the muddy bottom of a lake. A second species eats
insects that land on the water surface. This is an example of:
A. geographic isolation
B. ecological isolation
C. temporal isolation
D. behavioral isolation
E. mechanical incompatibility - ANSWER ✔ B. ecological isolation
9. Two species of snails are physically unable to mate. This is an example of:
A. geographic isolation
B. ecological isolation
C. behavioral isolation
D. temporal isolation
E. mechanical incompatibility - ANSWER ✔ E. mechanical incompatibility
Two different species of pine release their pollen at different times. This is an
example of:
A. geographic isolation
B. ecological isolation
C. behavioral isolation
D. temporal isolation
E. mechanical incompatibility - ANSWER ✔ D. temporal isolation
10. In many species of fireflies, males flash light from their abdomens to attract
females. Each species has a different flashing pattern. This is an example of:
A. geographic isolation
B. ecological isolation
C. behavioral isolation
D. temporal isolation
E. mechanical incompatibility - ANSWER ✔ C. behavioral isolation
11. One method of protecting the genetic isolation of a population is the inability
of sperm to fertilize eggs of a different species. This is called:
A. ecological isolation
B. temporal isolation
C. behavioral isolation
D. hybrid inviability
E. gametic incompatibility - ANSWER ✔ E. gametic incompatibility
, 12. Horses and donkeys can mate successfully to produce mules, which are always
sterile. Which genetic isolating mechanism prevents horses and donkeys from
becoming a single species?
A. hybrid inviability
B. hybrid infertility
C. mechanical isolation
D. behavioral isolation
E. temporal isolation - ANSWER ✔ E. temporal isolation
13. The theory that life began in the distant past from nonliving molecules that
became able to reproduce themselves is called:
A. prebiotic evolution
B. prehistoric evolution
C. natural selection
D. spontaneous evolution
E. endosymbiont evolution - ANSWER ✔ A. prebiotic evolution
14. The scenario of prebiotic evolution leading to the origin of life on Earth is
plausible because:
A. experiments suggest that all the chemical components of living cells can be
formed quickly from inorganic precursors
B. there was a vast period of time for simple chemicals to evolve into complex
cells
C. it has been observed to occur near thermal vents at the bottom of the ocean
D. it has been observed under laboratory conditions
E. it has been observed to occur on other planets - ANSWER ✔ B. there was a vast
period of time for simple chemicals to evolve into complex cells
15. The idea that river mud left in the sun will turn into frogs illustrates:
A. the endosymbiont theory
B. prebiotic evolution
C. spontaneous generation
D. self-replication
E. how prokaryotes evolve - ANSWER ✔ C. spontaneous generation
16. Based on current knowledge about the conditions of the early Earth, the first
organisms were most likely:
A. photosynthetic prokaryotes
WITH CORRECT DETAILED ANSWERS ||
100% GUARANTEED PASS!!
<RECENT VERSION>
1.Habitat loss, natural catastrophes, and/or excessive harvesting of a species often
result in:
A. increased mutation rates
B. population bottlenecks
C. increased fitness of individuals
D. artificial selection
E. increased gene flow - ANSWER ✔ B. population bottlenecks
2. The process by which allele frequencies are altered in a population due to
chance is called:
A. random evolution
B. assortative evolution
C. genetic drift
D. random mutation
E. fitness - ANSWER ✔ C. genetic drift
3. In general, each species of fruit fly in the Hawaiian archipelago is restricted to a
single island. One hypothesis to explain this pattern is that new species formed
after a small number of flies colonized each new island. This mechanism is called:
A. sexual selection
B. genetic equilibrium
C. artificial selection
D. the founder effect
E. assortative mating - ANSWER ✔ D. the founder effect
,4. Imagine a population of monkeys in South America whose habitat has been
reduced to the point where only 20 individuals survive. This is an example of:
A. genetic drift
B. the founder effect
C. natural selection
D. a population bottleneck
E. sexual selection- - ANSWER ✔ D. a population bottleneck
5. Evolution by genetic drift is most obvious in:
A. large populations
B. aquatic organisms
C. small populations
D. invertebrate species
E. migratory species - ANSWER ✔ A. large populations
6. The extreme loss of genetic diversity that has occurred in cheetah populations
due to overhunting is the result of:
A. the founder effect
B. a population bottleneck
C. coevolution
D. genetic drift
E. natural selection - ANSWER ✔ B. a population bottleneck
7. Before the modern era of science, organisms were assigned to species on the
basis of:
A. behavioral similarities
B. the existence of fossils of earlier forms
C. their capability of interbreeding
D. similarities in appearance
E. geographic location - ANSWER ✔ D. similarities in appearance
The biological concept of species requires that:
A. organisms are morphologically similar
B. geographic isolation occurs
C. organisms reproduce sexually
D. only asexual reproduction occurs
E. individuals are able to reproduce outside the group - ANSWER ✔ C. organisms
reproduce sexually
,8. One species of fish feeds in the muddy bottom of a lake. A second species eats
insects that land on the water surface. This is an example of:
A. geographic isolation
B. ecological isolation
C. temporal isolation
D. behavioral isolation
E. mechanical incompatibility - ANSWER ✔ B. ecological isolation
9. Two species of snails are physically unable to mate. This is an example of:
A. geographic isolation
B. ecological isolation
C. behavioral isolation
D. temporal isolation
E. mechanical incompatibility - ANSWER ✔ E. mechanical incompatibility
Two different species of pine release their pollen at different times. This is an
example of:
A. geographic isolation
B. ecological isolation
C. behavioral isolation
D. temporal isolation
E. mechanical incompatibility - ANSWER ✔ D. temporal isolation
10. In many species of fireflies, males flash light from their abdomens to attract
females. Each species has a different flashing pattern. This is an example of:
A. geographic isolation
B. ecological isolation
C. behavioral isolation
D. temporal isolation
E. mechanical incompatibility - ANSWER ✔ C. behavioral isolation
11. One method of protecting the genetic isolation of a population is the inability
of sperm to fertilize eggs of a different species. This is called:
A. ecological isolation
B. temporal isolation
C. behavioral isolation
D. hybrid inviability
E. gametic incompatibility - ANSWER ✔ E. gametic incompatibility
, 12. Horses and donkeys can mate successfully to produce mules, which are always
sterile. Which genetic isolating mechanism prevents horses and donkeys from
becoming a single species?
A. hybrid inviability
B. hybrid infertility
C. mechanical isolation
D. behavioral isolation
E. temporal isolation - ANSWER ✔ E. temporal isolation
13. The theory that life began in the distant past from nonliving molecules that
became able to reproduce themselves is called:
A. prebiotic evolution
B. prehistoric evolution
C. natural selection
D. spontaneous evolution
E. endosymbiont evolution - ANSWER ✔ A. prebiotic evolution
14. The scenario of prebiotic evolution leading to the origin of life on Earth is
plausible because:
A. experiments suggest that all the chemical components of living cells can be
formed quickly from inorganic precursors
B. there was a vast period of time for simple chemicals to evolve into complex
cells
C. it has been observed to occur near thermal vents at the bottom of the ocean
D. it has been observed under laboratory conditions
E. it has been observed to occur on other planets - ANSWER ✔ B. there was a vast
period of time for simple chemicals to evolve into complex cells
15. The idea that river mud left in the sun will turn into frogs illustrates:
A. the endosymbiont theory
B. prebiotic evolution
C. spontaneous generation
D. self-replication
E. how prokaryotes evolve - ANSWER ✔ C. spontaneous generation
16. Based on current knowledge about the conditions of the early Earth, the first
organisms were most likely:
A. photosynthetic prokaryotes
