Biology 114 Unit 1 Review Questions and Correct Answers
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Course
BIO 114
Institution
BIO 114
Five fundamental characteristics of organisms information Cells Energy Replication Evolution
Theory comprehensive explanation of an important feature of nature supported by facts gathered over time
Scientific name genus name is written first and is always underlined or italicized first letter is ...
Biology 114 Unit 1 Review Questions
and Correct Answers
Five fundamental characteristics of organisms ✅information
Cells
Energy
Replication
Evolution
Theory ✅comprehensive explanation of an important feature of nature supported by
facts gathered over time
Scientific name ✅genus name is written first and is always underlined or italicized first
letter is always capitalized
Specific name is written second and is always underlined or italicized. This name is
never capitalized
Population ✅comprises all the individuals of a given species in a specific area or
region at a certain time
Community ✅refers to all the species in a specific area or region at a certain time that
interact with eachother
Ecosystems ✅composed of the biological community and the abiotic environment
What conditions have to be met for evolution to occur ✅-variation in a trait.
-heritability of that trait.
-differential survival and reproduction.
Evidence of change through time ✅homology
Vestigial traits
Biogeography
To recycle nutrients, an ecosystem must have, at a minimum____.
A)producers
B)producers and decomposers
C)producers, primary consumers, and decomposers.
D) producers, primary consumers,secondary consumers, and decomposers ✅b)
producers and decomposers
Which of the following are important biotic factors that can affect the distribution of a
species?
, A) light intensity, seasonality
B)precipitation,wind
C)temp, water
D)predation, competition
E) nutrient availability, soil ph ✅d) predation, competition
Why do moderate levels of disturbance result in an increase in species diversity?
A)habitats are opened up for less competitive species.
B) competitively dominant species infrequently exclude less competitive species after a
moderate disturbance.
C) the environmental conditions become optimal.
D) the resulting uniform habitat supports stability, which in turn supports diversity .
E)less competitive species evolve strategies to compete with dominant species. ✅a)
habitats are opened up for less competitive species
What is a fossil?
A) a fossil is a preserved hard part of an organism, such as a shell or bone.
B) a fossil is an extinct organism
C) a fossil is an organism that has turned to stone.
D) a fossil is physical evidence of an organism that lived in the past. ✅d) a fossil is
physical evidence of an organism that lived in the past
As scientists, we expect the fossil record to be sparse and potentially biased. Which of
these is a valid critique of the general fossil record?
A) paleontologists lack the training to make a proper conclusion
B) paleontologists typically only find species that were widespread and/or present on
the earth for long periods of time
C)paleontologists typically find odd and rare species that might not represent the earth
at that time
D) fossil finds are typically limited to species within the last 100,000 years ✅b)
paleontologists typically only find species that were widespread and/or present on the
earth for long periods of time
Most swiss starlings produce four to five eggs in each clutch. Starlings producing fewer
or more than this have reduced fitness. Which of the following terms best describes this
situation?
A) artificial selection
B) directional selection
C)stabilizing selection
D)disruptive selection
E)sexual selection ✅c) stabilizing selection
Populations can evolve in the absence of natural selection(t/f) ✅true
Why are males usually the sex with exaggerated traits used in courtship?
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