a fundamental biological unit consisting of organisms that share similar characteristics, can interbreed naturally, and produce fertile offspring

the gradual process of growth, development, or change in a specific direction, often resulting in a more complex or better-adapted form

the preserved remains, impression, or trace of any once-living organism from a past geological age, typically over 10,000 years older than

the process or result of changing to better suit new conditions, environments, or purposes

a comprehensive, well-substantiated explanation of some aspect of the natural world that is based on a body of facts, laws, and tested hypotheses

the primary mechanism of evolution where organisms with heritable traits better suited to their environment are more likely to survive and reproduce

the activity or condition of competing.

a form of natural selection where individuals with certain inherited traits are more successful than others at obtaining mates and reproducing

the process where two or more species reciprocally affect each other's evolution through close ecological interactions

the total collection of all discovered fossils, including body fossils (remains) and trace fossils (footprints, burrows), embedded within Earth’s geological rock strata

the earliest stage of development for a multicellular organism, specifically a fertilized egg following division (cleavage) until it becomes a fetus

Homologous structures

organs, bones, or body parts in different species that share a common evolutionary ancestor, even if they now serve different functions

of a species, family, or other group of animals or plants) having no living members; no longer in existence

degenerate or underdeveloped structures in an organism that have lost most or all of their original, ancestral function through evolution

a scientific tool used to estimate the timing of evolutionary events, such as when species diverged from a common ancestor, by measuring the accumulation of genetic mutations over time

a method used in geology and archaeology to determine the chronological order of past events, fossils, or rock layers without identifying their exact numerical age

a scientific technique used in archaeology and geology to determine the specific numerical age—in years—of an artifact, rock, or fossil

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Question	Answer
Species	a fundamental biological unit consisting of organisms that share similar characteristics, can interbreed naturally, and produce fertile offspring
Evolution	the gradual process of growth, development, or change in a specific direction, often resulting in a more complex or better-adapted form
Fossil	the preserved remains, impression, or trace of any once-living organism from a past geological age, typically over 10,000 years older than
Adaptation	the process or result of changing to better suit new conditions, environments, or purposes
Scientific theory	a comprehensive, well-substantiated explanation of some aspect of the natural world that is based on a body of facts, laws, and tested hypotheses
Natural selection	the primary mechanism of evolution where organisms with heritable traits better suited to their environment are more likely to survive and reproduce
Competition	the activity or condition of competing.
Sexual selection	a form of natural selection where individuals with certain inherited traits are more successful than others at obtaining mates and reproducing
Coevolution	the process where two or more species reciprocally affect each other's evolution through close ecological interactions
Fossil record	the total collection of all discovered fossils, including body fossils (remains) and trace fossils (footprints, burrows), embedded within Earth’s geological rock strata
Embryo	the earliest stage of development for a multicellular organism, specifically a fertilized egg following division (cleavage) until it becomes a fetus
Homologous structures	organs, bones, or body parts in different species that share a common evolutionary ancestor, even if they now serve different functions
Extinct	of a species, family, or other group of animals or plants) having no living members; no longer in existence
Vestigial organs	degenerate or underdeveloped structures in an organism that have lost most or all of their original, ancestral function through evolution
Molecular clock	a scientific tool used to estimate the timing of evolutionary events, such as when species diverged from a common ancestor, by measuring the accumulation of genetic mutations over time
Relative dating	a method used in geology and archaeology to determine the chronological order of past events, fossils, or rock layers without identifying their exact numerical age
Absolute dating	a scientific technique used in archaeology and geology to determine the specific numerical age—in years—of an artifact, rock, or fossil

Created by: user-2020274

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