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Environmental Science: Biodiversity & Evolution Intro

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Environmental Science: Biodiversity & Evolution Intro

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Questions and Answers

What is the core concept of biological evolution?

The formation of mountain ranges over time

The process of trees shedding their leaves

Descent through genetic inheritance from a common ancestor (correct)

The change in seasons over the course of a year

What is the outcome of the process of evolution?

The formation of a single, uniform species

The elimination of all species except humans

A decrease in diversity of life on Earth

A pattern of relationships between species (correct)

What is the purpose of building 'family trees' in evolutionary biology?

To predict the extinction of species

To determine the age of the Earth

To study the evolution of a single species

To reflect evolutionary change and relationships between species (correct)

What is the implication of the evolutionary concept that all life on Earth shares a common ancestor?

All species on Earth are distant cousins Signup and view all the answers

What is the result of the evolutionary process of descent with modification?

The incredible diversity of life on Earth Signup and view all the answers

What is the focus of the study of human evolution and the origin of life?

The timeline of key events in human evolution and the origin of life Signup and view all the answers

What is the primary way that scientists reconstruct evolutionary relationships?

By analyzing inherited species characteristics and other historical evidence Signup and view all the answers

What are the three primary domains that all life on Earth may be split into?

Archaea, Bacteria, Eukaryota Signup and view all the answers

What does the root of a phylogenetic tree represent?

The ancestral lineage Signup and view all the answers

What occurs when a lineage separates, resulting in branching on a phylogenetic tree?

Speciation event Signup and view all the answers

What is required for natural selection to occur?

Genetic diversity within a population Signup and view all the answers

What is the term for the different forms of genes that determine various inherited traits?

Alleles Signup and view all the answers