a group of organisms that can interbreed naturally to produce fertile offspring.

the change in the heritable characteristics—specifically allele frequencies—of biological populations over successive generations.

the preserved remains, impressions, or traces of ancient organisms (plants, animals, microbes) from past geological ages, typically over 10,000 years old.

s the evolutionary process where populations of organisms change over generations to become better suited to their environment

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

a fundamental mechanism of evolution where organisms better adapted to their environment tend to survive and produce more offspring

fundamental interaction between organisms or species striving for limited resources

a mode of natural selection where members of one biological sex choose mates with specific traits (intersexual selection) or compete for access to mates (intrasexual selection

a scientific process where two or more species reciprocally influence each other's evolution through close ecological interactions.

the totality of all discovered and undiscovered fossils, placed in chronological order within Earth's geological strata

the earliest stage of development for a multicellular organism, starting from the fertilization of an egg until it develops into a fetus

Homologous structures

physical features in different organisms that share a common evolutionary ancestor, often possessing similar underlying anatomy even if they serve different functions

species, subspecies, or family that has no living members remaining on Earth.

physical structures or behavioral traits in a species that have lost most or all of their original ancestral function through evolution

A molecular clock is a scientific method used to estimate the timing of evolutionary events (divergence times) by measuring the number of genetic mutations (in DNA or protein sequences) that accumulate in different species over time

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

technique used to determine the specific numerical age—in years—of rocks, fossils, or artifacts

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Question	Answer
Species	a group of organisms that can interbreed naturally to produce fertile offspring.
Evolution	the change in the heritable characteristics—specifically allele frequencies—of biological populations over successive generations.
Fossil	the preserved remains, impressions, or traces of ancient organisms (plants, animals, microbes) from past geological ages, typically over 10,000 years old.
Adaptation	s the evolutionary process where populations of organisms change over generations to become better suited to their environment
Scientific theory	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	a fundamental mechanism of evolution where organisms better adapted to their environment tend to survive and produce more offspring
Competition	fundamental interaction between organisms or species striving for limited resources
Sexual selection	a mode of natural selection where members of one biological sex choose mates with specific traits (intersexual selection) or compete for access to mates (intrasexual selection
Coevolution	a scientific process where two or more species reciprocally influence each other's evolution through close ecological interactions.
Fossil record	the totality of all discovered and undiscovered fossils, placed in chronological order within Earth's geological strata
Embryo	the earliest stage of development for a multicellular organism, starting from the fertilization of an egg until it develops into a fetus
Homologous structures	physical features in different organisms that share a common evolutionary ancestor, often possessing similar underlying anatomy even if they serve different functions
Extinct	species, subspecies, or family that has no living members remaining on Earth.
Vestigial organs	physical structures or behavioral traits in a species that have lost most or all of their original ancestral function through evolution
Molecular clock	A molecular clock is a scientific method used to estimate the timing of evolutionary events (divergence times) by measuring the number of genetic mutations (in DNA or protein sequences) that accumulate in different species over time
Relative dating	a scientific 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	technique used to determine the specific numerical age—in years—of rocks, fossils, or artifacts

Created by: user-2020279

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