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Evolution Review

What do we call a useful trait that helps the organism to survive? Adaptation
What are the 3 types of adaptations? Structural, Behavioral, Functional
A useful body part is an _____ adaptation. Structural
A useful habit is a ____ adaptation. Behavioral
A useful chemical made by the body is an ___ adaptation. Functional
What type of adaptation are the wings on a bird? Structural
What type of adaptation is described when a bear hibernates for the winter? Behavioral
What type of adaptation is the venom of a snake? Functional
What is the process by which the entire species gradualy changes over time? Evolution
What do we call the remains of once living organisms? Fossils
In what type of rock can fossils be found? Sedimentary Rock
When body parts of different organisms are similar in shape and function, we say these structures are? Homologous
When two organisms have homologous structures, we say they must have _____ from a common ancestor. Evolved
What theory states that organisms with better adaptations are better able to survive and reproduce? Natural Selection
What are the 4 key points of Natural Selection? 1. Competition2. Survival of the Fittest3. Overproduction4. Variation
What do we call differences in apppearance within a population? Variations
What are 2 causes vof ariations within with a species? Sexual Reproduction & Mutations
When a species make MORE organisms than will likely survive, it is called: Overproduction
When organisms from different species fight for similar resources, they are: Competing
When one organism is born with a more useful trait that helps it to get a resource and live, we call this: Survival of the fittest
Who developed the Theory of Natural Selection? Charles Darwin
What do we call the layers of sedimentary rocks that are filled with fossils from the past? Fossil Record
Where in the fossil record are the OLDEST fossils found? Bottom
Where in the fossil record are the NEWEST, most EVOLVED, fossils found? Top
If fossils are found within the same rock layer, we can assume they are about the ____ age. Same
If a species does not reproduce, they will become Extinct
What happens to a species if the individuals that make it up are NOT born with useful adaptations? They Die (extinct)
What are 4 peices of evidence of evolution? 1. Fossils2. Fossil Record3. Homologous Bones4. Homologous Embryos
A lasting impression, or hollow imprint of a once living organism is called a(n): Mold Fossil
When the entire organism has been preserved in tar, ice or sap, we call this a: Body Fossil
Bite marks, foot prints and animal poop are alll examples of: Trace Fossils
A fossil made out of minerals in the shape of a once living organism is a(n): Cast Fossil
What does "homologous" mean? When 2 things look the SAME
What is an embryo? An unborn egg
If 2 organisms share homologous bones or embryos, scientists beleive the 2 organisms also share a common: ancestor (distant relative)
What might living things compete for? 1. Food2. Water3. Shelter4. Space
Created by: sloanescience