Question 1

Which of the following is a benefit of multicellularity for slime mold amoebas?

Accepted Answer

A)  self-sacrifice for other amoebas 
B)  ability to move quickly 
C)  sexual reproduction 
D)  ability to feed on bacteria 
A)  self-sacrifice for other amoebas 
B)  ability to move quickly 
C)  sexual reproduction 
D)  ability to feed on bacteria

Question 2

Why do the benefits of group living focus on foraging and predation?

Accepted Answer

A)  Other behaviors, such as reproduction, are irrelevant for the fitness of individuals in a group. 
B)  Individuals in groups always forage and engage in antipredator behaviors together. 
C)  Groups only exist for foraging and antipredator behavior. 
D)  Much of an animal's time is spent foraging and avoiding predators. 
A)  Other behaviors, such as reproduction, are irrelevant for the fitness of individuals in a group. 
B)  Individuals in groups always forage and engage in antipredator behaviors together. 
C)  Groups only exist for foraging and antipredator behavior. 
D)  Much of an animal's time is spent foraging and avoiding predators.

Question 3

List the sequence of endosymbiotic events, beginning with ancestral Cyanobacteria, Proteobacteria, and Archaebacteria, that led to the evolution of plants.

Accepted Answer

An ancient archaebacterium engulfed an a

Question 4

Which of the following major transitions proposed by John Maynard Smith and Eörs Szathmary (1997) most likely occurred first?

Accepted Answer

A)  the evolution of sexual reproduction 
B)  the emergence of eukaryotic cells 
C)  the origin of the first cells 
D)  the evolution of groups, including complex societies 
A)  the evolution of sexual reproduction 
B)  the emergence of eukaryotic cells 
C)  the origin of the first cells 
D)  the evolution of groups, including complex societies

Question 5

In what way are single-celled slime mold amoebas and individual honeybees (social insects that live in colonies) alike?

Accepted Answer

A)  Signals cause them to aggregate, but they usually live alone. 
B)  They are both examples of loss of complexity. 
C)  They are both examples of why group living is disadvantageous. 
D)  Some individuals give up independent replication in the larger group. 
A)  Signals cause them to aggregate, but they usually live alone. 
B)  They are both examples of loss of complexity. 
C)  They are both examples of why group living is disadvantageous. 
D)  Some individuals give up independent replication in the larger group.

Question 6

Consider Dyctiostelium discoideum, a slime mold that form slugs, and Volvox carteri, a species of volvocine algae. Both slime mold slugs and V. carteri contain soma and germ cells. Is the slug an individual? Is the Volvox colony an individual? Explain.

Accepted Answer

An individual is an integrated and indiv

Question 7

Based on the figure, what date of origin would you predict for organisms with around 100 different cell types?

Accepted Answer

A)  100 million years ago 
B)  300 million years ago 
C)  500 million years ago 
D)  700 million years ago 
A)  100 million years ago 
B)  300 million years ago 
C)  500 million years ago 
D)  700 million years ago

Which of the following is a benefit of multicellularity for slime mold amoebas?

Why do the benefits of group living focus on foraging and predation?

List the sequence of endosymbiotic events, beginning with ancestral Cyanobacteria, Proteobacteria, and Archaebacteria, that led to the evolution of plants.

Which of the following major transitions proposed by John Maynard Smith and Eörs Szathmary (1997) most likely occurred first?

In what way are single-celled slime mold amoebas and individual honeybees (social insects that live in colonies) alike?

Consider Dyctiostelium discoideum, a slime mold that form slugs, and Volvox carteri, a species of volvocine algae. Both slime mold slugs and V. carteri contain soma and germ cells. Is the slug an individual? Is the Volvox colony an individual? Explain.

Based on the figure, what date of origin would you predict for organisms with around 100 different cell types?

An Overview of Evolutionary Biology

Early Evolutionary Ideas and Darwin S Insight

Natural Selection

Phylogeny and Evolutionary History

Inferring Phylogeny

Transmission Genetics and the Sources of Genetic Variation

The Genetics of Populations

Evolution in Finite Populations

Evolution at Multiple Loci

Genome Evolution

The Origin and Evolution of Early Life

Evolution and Development

Species and Speciation

Extinction and Evolutionary Trends

The Evolution of Sex

The Evolution of Sociality

Coevolution

Human Evolution

Evolution and Medicine

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Exam 12: Major Transitions

Which of the following is a benefit of multicellularity for slime mold amoebas?

Why do the benefits of group living focus on foraging and predation?

List the sequence of endosymbiotic events, beginning with ancestral Cyanobacteria, Proteobacteria, and Archaebacteria, that led to the evolution of plants.

Which of the following major transitions proposed by John Maynard Smith and Eörs Szathmary (1997) most likely occurred first?

In what way are single-celled slime mold amoebas and individual honeybees (social insects that live in colonies) alike?

Consider Dyctiostelium discoideum, a slime mold that form slugs, and Volvox carteri, a species of volvocine algae. Both slime mold slugs and V. carteri contain soma and germ cells. Is the slug an individual? Is the Volvox colony an individual? Explain.

Based on the figure, what date of origin would you predict for organisms with around 100 different cell types?

An Overview of Evolutionary Biology

Early Evolutionary Ideas and Darwin S Insight

Natural Selection

Phylogeny and Evolutionary History

Inferring Phylogeny

Transmission Genetics and the Sources of Genetic Variation

The Genetics of Populations

Evolution in Finite Populations

Evolution at Multiple Loci

Genome Evolution

The Origin and Evolution of Early Life

Evolution and Development

Species and Speciation

Extinction and Evolutionary Trends

The Evolution of Sex

The Evolution of Sociality

Coevolution

Human Evolution

Evolution and Medicine

Filters