What is evolution?
Evolution is the process by which species change over time through genetic variations and natural selection.
Who is Charles Darwin?
Charles Darwin was a naturalist known for his theory of evolution by natural selection, which he proposed in his book, "On the Origin of Species".
What is Darwin's theory of natural selection?
Darwin's theory of natural selection states that individuals with traits better suited to their environment are more likely to survive and reproduce.
What are the main principles of natural selection?
The main principles are variation, competition, adaptation, and selection.
Who was Jean-Baptiste Lamarck?
Jean-Baptiste Lamarck was a French biologist who proposed that organisms change over time through the inheritance of acquired characteristics.
What is Lamarck's theory of evolution?
Lamarck's theory suggests that organisms can pass on characteristics acquired during their lifetime to their offspring.
How does Lamarck's theory differ from Darwin's?
Lamarck believed in the inheritance of acquired traits, while Darwin proposed natural selection as the mechanism for evolution.
What is the evidence for evolution?
Evidence for evolution includes fossils, comparative anatomy, embryology, molecular biology, and biogeography.
How do fossils support evolution?
Fossils show the physical traits of organisms over time, providing a record of species changes and the existence of extinct species.
What is comparative anatomy?
Comparative anatomy is the study of similarities and differences in the body structures of different species, revealing evolutionary relationships.
What are homologous structures?
Homologous structures are body parts that are similar in different species due to common ancestry, despite their different functions.
What are analogous structures?
Analogous structures are body parts that serve similar functions in different species but do not share a common evolutionary origin.
What is embryology?
Embryology is the study of embryos and their development, showing that early developmental stages are similar across related species.
What role does DNA play as evidence for evolution?
DNA similarities between species provide evidence of common ancestry and help trace evolutionary relationships.
What is genetic drift?
Genetic drift is a random change in allele frequencies in a population, often having a significant effect in small populations.
What is gene flow?
Gene flow is the movement of genes into or out of a population due to the migration of individuals or gametes.
What is mutation?
A mutation is a change in a DNA sequence that can introduce new genetic variations, driving evolution.
What is natural selection?
Natural selection is the process by which advantageous traits become more common in a population, driving evolutionary change.
What is artificial selection?
Artificial selection is the process by which humans breed organisms for specific traits, providing a model of evolutionary change.
What are selective pressures?
Selective pressures are environmental factors that favor certain traits, driving natural selection and adaptation.
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