Concordia BIOL 226 Exam Questions
and Answers 100% Solved | Graded A+
The Darwinian revolution challenged what? - ✔✔traditional views of a
young Earth inhabited by unchanging species
Descent with modification by natural selection - ✔✔explains the
adaptations of organisms and the unity and diversity of life
4 types of evidence for evolution - ✔✔1. direct observations
2. homology
3. fossil record
4. biogeography
Scala Naturae - ✔✔life-forms could be arranged on a scale of increasing
complexity
Evolution - ✔✔a change in the genetic composition of a population over
time
Lamarck's two mechanisms - ✔✔1. use and disuse
2. inheritance of acquired characteristics
1
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
, Adaptations - ✔✔inherited characteristics of organisms that enhance their
survival and reproduction in specific environments
Malthus influence on Darwin - ✔✔most species produce large numbers of
offspring
Evidence that supports Darwin's Ideas - ✔✔1. members of a population
often vary in their inherited traits
2. all species produce more offspring than can survive
3. individuals with inherited characteristics that give them a higher fitness
more likely to leave offspring than other individuals
4. this unequal ability of individuals to produce offspring will lead to the
accumulation of favourable traits in a population over generations
Homology - ✔✔similar structure different function
Analogy (convergent evolution) - ✔✔different structure similar function
What makes evolution possible? - ✔✔genetic variation
What does the Hardy-Weinberg principle test? - ✔✔whether a population is
evolving
3 mechanisms that alter allele frequencies in a population - ✔✔1. Natural
selection
2. Genetic drift
2
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
and Answers 100% Solved | Graded A+
The Darwinian revolution challenged what? - ✔✔traditional views of a
young Earth inhabited by unchanging species
Descent with modification by natural selection - ✔✔explains the
adaptations of organisms and the unity and diversity of life
4 types of evidence for evolution - ✔✔1. direct observations
2. homology
3. fossil record
4. biogeography
Scala Naturae - ✔✔life-forms could be arranged on a scale of increasing
complexity
Evolution - ✔✔a change in the genetic composition of a population over
time
Lamarck's two mechanisms - ✔✔1. use and disuse
2. inheritance of acquired characteristics
1
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
, Adaptations - ✔✔inherited characteristics of organisms that enhance their
survival and reproduction in specific environments
Malthus influence on Darwin - ✔✔most species produce large numbers of
offspring
Evidence that supports Darwin's Ideas - ✔✔1. members of a population
often vary in their inherited traits
2. all species produce more offspring than can survive
3. individuals with inherited characteristics that give them a higher fitness
more likely to leave offspring than other individuals
4. this unequal ability of individuals to produce offspring will lead to the
accumulation of favourable traits in a population over generations
Homology - ✔✔similar structure different function
Analogy (convergent evolution) - ✔✔different structure similar function
What makes evolution possible? - ✔✔genetic variation
What does the Hardy-Weinberg principle test? - ✔✔whether a population is
evolving
3 mechanisms that alter allele frequencies in a population - ✔✔1. Natural
selection
2. Genetic drift
2
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
