Principles of Science and Evolution Worksheet

What are the 5 principles of Science?

• Science it guided by natural law

• Science has to be explanatory by reference to natural law

• Science is testable against the observable world

• Science conclusions are not necessarily the final word, they're tentative

• Science is falsifiable.

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How do fossils help us learn and understand past life?

• Fossil's help us to predict the future by holding a key to the past

• They are always complete, so we know for sure what the species was in the past and where to put it correctly with other organisms

• Fossils give us clues to past life by showing us ancestral forms and how species have changed over time

• They are proof of spontaneous generation

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Which of the following is not a necessary condition for natural selection?

• Variation within a population

• Differential reproduction

• Heritable traits

• A constant environment without changes

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Which of the following is an example of natural selection

• The creation of new dog breeds through selective breeding

• The evolution of antibiotic resistance in bacteria

• The development of larger brains in humans over time

• The migration of birds to warmer climates during winter

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How does natural selection lead to adaptation?

• Individuals with advantageous traits are more likely to pass on their genes to the next generation, leading to a population that is better suited to its environment

• Natural selection directly changes the genes of individuals

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How might the change in the environment favor the evolution of thicker fur in a population of rabbits?

• The traits were acquired during their parents lifetime and passed on to them

• Thicker fur is a result of acquired traits, which are not inherited

• thicker fur is a result of genetic drift, a random process that does not involve environmental pressures

• If the environment becomes colder, rabbits with thicker fur will be better insulated and have a higher chance of survival during harsh winters

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What do scientists use besides physical features to determine if organisms are related?

• DNA

• Fossil Record

• Embryonic development

• Behavior

• Mythology

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The age of Earth supports the theory of evolution because:

• It provides enough time for evolutionary processes to occur.

• It proves all species appeared at the same time.

• It shows Earth is too young for evolution.

• It suggests evolution happens instantly.

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What is/are the primary difference between cladistics and taxonomy?

• Cladistics focuses on shared derived characteristics, where taxonomy focuses on overall characteristics

• Cladistics is based on evolutionary relationships, while taxonomy focuses on physical characteristics

• Cladistics is more recent method of choice, while taxonomy is an older choice

• Cladistics is based on fossil record, while taxonomy is based on DNA

• Cladistics focuses on the number of species in a group, where taxonomy focuses on the diversity of species in a group

Evolution of diverging populations requires that they be physically separate for long periods of time. If diverging species reunite before they’re isolated, interbreeding maintains one species.

• True

• False

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