Term
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Definition
| the gradual change in species over time |
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Term
| What is punctuated equilibrium? |
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Definition
| Short period with fast genetic change |
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Term
| Most fossils form when they become buried in ________ |
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Definition
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Term
| An adaptation is any trait that helps an organism ____ |
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Definition
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Term
| The technique that allows scientists to determine the actual age of a fossil is called ____ |
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Definition
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Term
| Charles Darwin said evolution occurred _____ |
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Definition
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Term
| How is variation introduced into a population? |
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Definition
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Term
| The role an organism has in an environment is called its _____ |
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Definition
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Term
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Definition
| the gradual change in species over time |
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Term
| By what process did Darwin think evolution occurred? |
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Definition
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Term
| Any difference between individuals of the same species is called a(n) ____ |
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Definition
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Term
| Farmers today use the ____ method to breed for the best animals |
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Definition
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Term
| What vestigial structure do humans have in their bodies? |
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Definition
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Term
| What is the evolutionary theory? |
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Definition
| All life originated from a common unicellular ancestor |
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Term
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Definition
| When both species benefit from a relationship |
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Term
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Definition
| a close relationship between two or more different species |
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Term
| What is a homologous structure? |
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Definition
| anatomically similar structures between organisms |
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Term
| What is punctuated equilibrium? |
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Definition
| short period of time with gast genetic change |
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Term
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Definition
| An interbreeding population of organisms that can mate and produce healthy, fertile offspring |
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Term
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Definition
| A relationship between two species in which one species nourishes itself to the disadvantage of the other species |
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Term
| What is the fossil record? |
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Definition
| A record of all the known fossils |
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Term
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Definition
| The preserved remains and imprints of ancient organisms |
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Term
| ___________ + _______________ = evolution |
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Definition
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Term
| What was the name of Charles Darwin's ship? |
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Definition
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Term
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Definition
| Small genetic changes occur slowly within a population (Slow, gradual change) |
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Term
| What is survival of the fittest? |
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Definition
| Only the strong live and pass on genes to their offspring. The weak die and their genes are therefore not passed on |
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Term
| According to the evolutionary theory, how did all life begin? |
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Definition
| All life originated from a common unicellular ancestor through natural selection |
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Term
| What is relative dating of fossils? |
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Definition
| When a fossil's age is related to another known fossil in the same soil horizon |
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Term
| How does studying embryology help scientists learn about evolution? |
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Definition
| early stages of development in animals are similar; therefore, the animals must have evolved from a common ancestor |
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Term
| How can biochemistry help scientists learn about evolution? |
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Definition
| Scientists study and compare chemicals found in living things to each other - closer the ancestor, the more similar the amino acids in the DNA |
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