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Ball is life
fossils
Question | Answer |
---|---|
The process by which individuals are better adapted to their environment and are more likely to survive and reproduce is called? | Natural selection |
Any difference between individuals of the same species is a | Variation |
The time it takes for half of the atoms in a sample to decay is its | Half life |
A well tested concept that explains a wide range of observation is a | Scientific theory |
The theory that speices evolve quickly during short burst of time | Punctuated equilibria |
Documentation of the milions of fossils scientists have collected over time is called | Fossil record |
Unstable elements that decay or breakdown into different elements are | Radioactive elements |
Similar structures that related species have inherited from common ancestors are called | Homologus structures |
A hallow space left where the fossil has decayed or dissolved is called a | Mold |
A process comparing the age of two fossils by their placement in the layers of sedimentary rock layers | Relative dating |
Gradual changes in a species over time is called | Evolution |
Fossils that are buried in sediments and actually changed to rocks are | Petrifed fossils |
A trait that helps an organism survie and reproduce is a(n) | Adaptation |
The theory that evolution occurs slowly but steadly is | Gradualism |
A diagram thats shows how scientists think different groups of organisms are related is a | Branching trees |
A process that test the radioactive materials within a fossil to tell its actual age ( also knows as absolute dating)is called | Radioactive dating |
Preserved remains of an organism that lived in the past are | Fossils |
When no member of the species is still alive its called | Extint |
A copy of the shape of the organism that made is called a | Cast |
This is a factor in natural selection as organisms attempt to survive using the same limited resources(food, shelter, mates..) | Competition |
Evidence that related species had a common ancestor because of the way their bodies are anatomically constructed in similar ways | Homolougus structure |
This factor in natural selection happens when there are more offspring than can possibly survive on given resources | Overpreduction |