natural selection by evolution

• what is natural selection?


  Natural selection is the process where organisms with advantageous traits are more likely to survive, reproduce, and pass on their genes to the next generation.
• what theory did Charles Darwin propose?


  Darwin proposed the theory of evolution.
• What was Charles Darwin's book called?


  "On the Origin of Species".
• definition of evolution


  Evolution is the gradual change in the characteristics of species over time.
• what does the theory of evolution by natural selection state?


  his theory states:

  1. There is variation within a population.
  2. Individuals with advantageous traits are more likely to survive and reproduce.
  3. These traits are inherited by their offspring.
  4. Over time, these traits become more common, leading to the evolution of the species.
• what is the definition of species?


  A species is a group of organisms that can interbreed and produce fertile offspring.
• list 3 observations Darwin made which led him to propose his theory.


  • Variation: Individuals within a species show differences in traits.
  • Competition: Organisms compete for limited resources like food and mates.
  • Overproduction: More offspring are produced than can survive, leading to a struggle for survival.
• Name two pieces of evidence for Darwin's theory of evolution through natural selection which means it is now largely accepted.


  • Fossil Evidence: Fossils show a gradual change in species over time, with intermediate forms linking past and present organisms.
  • Antibiotic Resistance: Bacteria evolve resistance to antibiotics, demonstrating natural selection in action as resistant bacteria survive and reproduce.
• who was Charles Darwin?

  Charles Darwin was a British naturalist who proposed the theory of evolution by natural selection.
• What evidence supports Darwin’s theory of evolution?


  • Fossil records show gradual changes in species over time.
  • DNA evidence shows similarities between species.
  • Observations of natural selection in action, such as antibiotic resistance in bacteria.