on 02/10/11
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is Evolution? | The gradual change in a species over time
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| What is Natural Selection? | The process by which individuals that are better adapted to their enviroment are more likely to survive and reproduce than other members of the same species
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| What are 3 factors that affect natural selection? | Overproduction
Competition
Variations
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| What is a fact? | A natural phenomenon repeatedly confirmed by observation
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| What is a Theory? | A well-substained explanation of some aspect of the natural world that typically incorporates many confirmed observations, laws, and succesfully verified hypothesis
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| What in a hypothesis? | a possible and testable statement about a natural phenomanon
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| What 4 features do all tetrapods have in common? | four limbs
a backbone with spurs
a pelvis attached to the backbone
nosterals
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| What are 2 factors that effect evolution? | Genetic mutation
Changes in the enviroment
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| What is the Theory of Natural Selection? | "survival of the fittest"- best adapted will survive, thrive, and pass on its genes when it reproduces
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| When does a species become extinict? | when no members of that species are still alive
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| How could a sudden change in a species habitat cause the species extinction? | If the enviroment changes quickly, animals wouldn't be able to eat the same things, or live in the same places.
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| What is the study of similarities in body structure called? | Comparitive anatomy
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| How do similarities in DNA and protiens provide evidence of an evolutionary relationship between 2 species? | 2 speicies with similarites in DNA and protiens probably evolved fromt the same ancestor.
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| predators such as segals and crabs are an enviromental risk to newly hatched sea turtles. Why are some newly hatched turtles better able to survive than others in their enviroment? | They probably have a harder shell,and stronger flippers, and are probably faster, smaller and better camoflouged.
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| Which domainincludes only prokaryotes? | Bacteria
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| Which group of organisms includes only multicellular heterotrophs? | Animals
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| What happens when a species gets geographicly isolated? | a new species forms
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| Which kingdom includes both unicellular and multicelllular organisms? | fungi
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| What are the the factors that affect natural selection? | Overproduction
variations
competition
selection
enviroment
genes
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| Why do scientists organize living things into groups? | so the organisms are easy to study
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| What is a branching tree? | a diagram that shows how scientists think different groups of organisms are related
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| What is taxonomy? | the scientific stufy of how living things are classififed.
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| What is the role of genes in evolution? | without genetic variation, all members of a species would be the same
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| What does an organism's scientific name consist of? | genus
species
binomial nomenclature
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| What are the only traits that can be acted upon by natural selection? | Traits that are controlled by genes
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| Who developed the naming system that groups organisms? | Carolus Linnaeus
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| A trait that helps an organism survive is called an __________ | adaptation
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| What is a genus? | a classification group that contains similar, closely related organisms
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| The more classification levels that 2 organisms share, the more _________ they have in common | characteristics
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| How are organisms placed into domains and kingdoms? | Their cell type,their ability to make food, and the number of cells in their body
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| What 4 kingdoms are eukaryotes classified into? | Protists, fungi, plants, or animals
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| What are Prokaryotes? | organisms whose cells lack a nucleus
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| What are Eukeryotes? | organisms with cells that contain nuclei
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