Question 1

What were the three key observations made by Darwin that allowed him to deduce that natural selection is a primary driver of evolution?

Accepted Answer

A)  Species change and adapt based on environmental pressure, individuals change within their lifetimes, and offspring inherit the changes. 
B)  Genetic drift, gene flow, and mutations provide the change necessary in populations that affect future generations. 
C)  Organisms produce more offspring than survive, variation exists among members of populations, and advantageous variations increase in relative frequency over time. 
D)  The number of adults tends to remain the same over time, individuals vary little over time, and natural selection works on only the best of those adults in each generation. 
A)  Species change and adapt based on environmental pressure, individuals change within their lifetimes, and offspring inherit the changes. 
B)  Genetic drift, gene flow, and mutations provide the change necessary in populations that affect future generations. 
C)  Organisms produce more offspring than survive, variation exists among members of populations, and advantageous variations increase in relative frequency over time. 
D)  The number of adults tends to remain the same over time, individuals vary little over time, and natural selection works on only the best of those adults in each generation.

Question 2

Thomas Malthus's contribution to natural selection is the

Accepted Answer

A)  binomial taxonomic system of naming species. 
B)  theory that the earth's old age is based on geologic evidence resulting from cataclysmic events. 
C)  observation that an abundance of food would allow a population to increase geometrically and indefinitely, but there simply is not enough food, so populations are limited by food supply. 
D)  theory that environmental resources increase to population pressures. 
A)  binomial taxonomic system of naming species. 
B)  theory that the earth's old age is based on geologic evidence resulting from cataclysmic events. 
C)  observation that an abundance of food would allow a population to increase geometrically and indefinitely, but there simply is not enough food, so populations are limited by food supply. 
D)  theory that environmental resources increase to population pressures.

What were the three key observations made by Darwin that allowed him to deduce that natural selection is a primary driver of evolution?

Thomas Malthus's contribution to natural selection is the

What Is Biological Anthropology

Genetics: Reproducing Life and Producing Variation

Genes and Their Evolution: Population Genetics

Biology in the Present: Living People

Biology in the Present: the Other Living Primates

Primate Sociality, Social Behavior, and Culture

Fossils and Their Place in Time and Nature

Primate Origins and Evolution: the First 50 Million Years

Early Hominin Origins and Evolution: The Roots of Humanity

The Origins and Evolution of Early Homo

The Origins, Evolution, and Dispersal of Modern People

The Past 10,000 Years: Agriculture, Population, Biology

Filters

Exam 2: Evolution: Constructing a Fundamental Scientific Theory

What were the three key observations made by Darwin that allowed him to deduce that natural selection is a primary driver of evolution?

Thomas Malthus's contribution to natural selection is the

What Is Biological Anthropology

Genetics: Reproducing Life and Producing Variation

Genes and Their Evolution: Population Genetics

Biology in the Present: Living People

Biology in the Present: the Other Living Primates

Primate Sociality, Social Behavior, and Culture

Fossils and Their Place in Time and Nature

Primate Origins and Evolution: the First 50 Million Years

Early Hominin Origins and Evolution: The Roots of Humanity

The Origins and Evolution of Early Homo

The Origins, Evolution, and Dispersal of Modern People

The Past 10,000 Years: Agriculture, Population, Biology

Filters