Evolution- "The process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth."
- Evolution is very important in the science world. It explains how we and animals change to survive and adapt to their surroundings.
- One of the most popular theory is Darwin's theory.
Natural selection can change a species in small ways, causing a population to change color or size over the course of several generations.
-Darwin's theory is known as the "modern evolutionary synthesis."The physical and behavioral changes that make natural selection possible happen at the level of DNA and genes. Such changes are called mutations.
-Natural selection is meant to preserve and grow efficient genetic mutations.
one member of a species grew taller that is an advantage. That specie's offspring would then inherit that trait and pass it down. The species with out the advance would eventually die off and that would leave the species with the longer neck/legs (advantage.) Natural selection is the preservation of having an advantage to survive in the wild.
Process of Natural Selection
Variation- Organisms within a population have their own variation in appearance and behavior (size, hair, facial markings, color, voice properties, and/or, number of offspring.) However, some traits are the same for every species like how many eyes they have or the amount of vertebrae.
Inheritance- Some traits are consistently passed down to the offspring. These traits can be heritable, other traits can be strongly influenced by environmental conditions and show weak heritability.
High Rate of Population Growth- Most populations have too many offspring per year than their local resources can support, which causes a struggle for resources.
Differential Survival and Reproduction- Individuals possessing traits well suited for the struggle for local resources will contribute more offspring to the next generation.
Mutations can be caused by random errors in DNA replication or repair, or by chemical or radiation damage.