Natural selection is a process where animals and plants that are better suited to their environment have a better chance of surviving and having babies. This means that over time, the traits that help them survive become more common in the population. For example, if there are birds with longer beaks in an area with lots of flowers with deep nectar, those birds will be able to get more food and survive better than birds with shorter beaks. As a result, over time the population of birds in that area will have more individuals with longer beaks.
In what ways do organisms adapt to their environment? (answer with a few words)
Natural selection can cause the evolution of a single species into two new species, a process known as speciation. The process of natural selection is often referred to as 'survival of the fittest', but this phrase was actually coined by Herbert Spencer, not Charles Darwin. Natural selection has been observed to occur in both plants and animals, as well as in other organisms such as bacteria and viruses.
Did you know?
Natural selection is a process where organisms that are better adapted to their environment are more likely to survive and reproduce. This process helps in the evolution of species, as the organisms with the best traits for their environment will pass them on to their offspring. Natural selection is driven by the environment and helps form the diversity of life we see today.
What is Natural Selection?
The term 'natural selection' was coined by Charles Darwin in 1859. Natural selection is not directionless, but instead is an active force that shapes the evolution of species. Natural selection can occur at different levels, such as genes, individuals, and populations.
Did you know?
Work together in pairs: What is the main difference between natural selection and artificial selection?
How does natural selection contribute to the evolution of species over time?
Work together in pairs: What is the difference between survival of the fittest and natural selection?
Brain break: Draw a slice of pizza sitting on a throne like a king
What is natural selection?
- The process by which organisms better adapted to their environment tend to survive and produce more offspring
- The process of artificially selecting certain traits in organisms
- The process of genetic mutation in a population
Who came up with the theory of natural selection?
- Charles Darwin
- Isaac Newton
- Albert Einstein
What are the three main components of natural selection?
- Variation, inheritance, and differential survival/reproduction
- Genetic drift, genetic flow, and bottleneck effect
- Competition, cooperation, and acquired traits
Which factor does NOT contribute to natural selection?
- Intentional breeding by humans
- Selection pressure from the environment
- Variation in traits among individuals
Which term describes when two species evolve adaptations together as a result of their interactions with one another?
- Artificial selection
- Allopatric speciation