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Bio 1104 Exam 1 Questions With Complete Solutions
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Bio 1104 Exam 1 Questions With Complete Solutions
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Bio 1104 Exam 1 Questions With Complete Solutions4 postulates of Natural Selection Correct Answer 1. organisms
have natural variation of traits (ex. characteristics)
2. trait must be inheritable
3. there is competition in the environment
4. individuals with the best traits survive and produce more
offspring than others
Abiotic Correct Answer climate, the availability of water and
the concentration of minerals in the soil
Alleles Correct Answer there are usually 2 or more of each
gene
Analogous structure Correct Answer are those that are similar
in function but are not inherited from a common ancestor
Antibiotic resistance Correct Answer when the bacteria is
resistant to the medicine
Biochemistry and Genetics Correct Answer modern
biochemical and genetic analyses reveal relatedness among
diverse organisms
Biotic Correct Answer consist of other organisms
Characteristics of Science Correct Answer -empirical: based on
data and observations
-tentative: changes over time or with new evidence
-creative: use imagination to form explanations
, -subjective: each person uses their background knowledge and
previous experiences
Comparative Anatomy Correct Answer -give evidence of
descent with modification
-structure modified by evolution to serve different functions in
different species
Competition Correct Answer -one of the major sources of
natural selection
-is an interaction among organisms competing for scarce
resources
Convergent evolution Correct Answer is a process in which
natural selection causes non-homologous structures that serve
similar functions to resemble one another
Embryology Correct Answer embryological similarity suggest
common ancestry
*fish, turtle, chicken, mice, and humans develop their early
embryonic stage
Experiments (natural and unnatural) Correct Answer -
controlled breeding modifies organisms
*artificial selection is selective breeding of domestic plants and
animals to produce specific desirable features
-humans have created tremendous variation in several species
over relatively short periods of time through artificial selection
Fish coloration and predation Correct Answer -brighter
coloration can evolve when fewer predators are present
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