KSU BIO 1108 Exam 1 & 2 Review - McNeal
Questions and Answers 100% Verified
Question:
Hypothesis
Answer:
Testable explanation for a set of observations based on the available data & guided by
inductive reasoning (Narrow)
Question:
Scientific Theory
Answer:
A concept that has been well tested, and is accepted as an explanation to a wide range
of observations (broad)
Question:
Evolution
Answer:
A change over time in genetic composition of a population
Question:
Natural Selection
Answer:
Differential success in survival & reproduction caused by environmental factors
,Question:
Darwin's simple observations
Answer:
1) Members of a population often vary greatly in their traits 2) Many of these traits are
inherited from parents to offspring 3) Species are capable of producing more offspring
than their environment can support 4) Lack of resources will prevent many of these
offspring from surviving
Question:
Darwin's simple inferences
Answer:
1) Individuals whose inherited traits give them a higher probability of surviving &
reproducing in given environments tend to leave more offspring than other individuals 2)
This unequal ability to survive & reproduce leads to accumulation of favourable traits in
the population over generations
Question:
Reproductive Barriers (Prezygotic)
Answer:
Habitat Isolation, Temporal Isolation, Behavioral Isolation, Mechanical, Gametic
Question:
Reproductive Barriers (Postzygotic)
Answer:
Reduced Hybrid Viability, Reduced Hybrid Fertility, Hybrid Breakdown
, Question:
Habitat Isolation
Answer:
2 species rarely encounter each other, or never, because they occupy different habitats,
even though not isolated by physical barriers
Question:
Temporal Isolation
Answer:
Species that breed at different times of the day, seasons or years cannot mix their
gametes
Question:
Behavioral
Answer:
Courtship rituals, specific vocalizations, unique to one species
Question:
Mechanical
Answer:
Morphological differences can prevent successful mating
Questions and Answers 100% Verified
Question:
Hypothesis
Answer:
Testable explanation for a set of observations based on the available data & guided by
inductive reasoning (Narrow)
Question:
Scientific Theory
Answer:
A concept that has been well tested, and is accepted as an explanation to a wide range
of observations (broad)
Question:
Evolution
Answer:
A change over time in genetic composition of a population
Question:
Natural Selection
Answer:
Differential success in survival & reproduction caused by environmental factors
,Question:
Darwin's simple observations
Answer:
1) Members of a population often vary greatly in their traits 2) Many of these traits are
inherited from parents to offspring 3) Species are capable of producing more offspring
than their environment can support 4) Lack of resources will prevent many of these
offspring from surviving
Question:
Darwin's simple inferences
Answer:
1) Individuals whose inherited traits give them a higher probability of surviving &
reproducing in given environments tend to leave more offspring than other individuals 2)
This unequal ability to survive & reproduce leads to accumulation of favourable traits in
the population over generations
Question:
Reproductive Barriers (Prezygotic)
Answer:
Habitat Isolation, Temporal Isolation, Behavioral Isolation, Mechanical, Gametic
Question:
Reproductive Barriers (Postzygotic)
Answer:
Reduced Hybrid Viability, Reduced Hybrid Fertility, Hybrid Breakdown
, Question:
Habitat Isolation
Answer:
2 species rarely encounter each other, or never, because they occupy different habitats,
even though not isolated by physical barriers
Question:
Temporal Isolation
Answer:
Species that breed at different times of the day, seasons or years cannot mix their
gametes
Question:
Behavioral
Answer:
Courtship rituals, specific vocalizations, unique to one species
Question:
Mechanical
Answer:
Morphological differences can prevent successful mating
