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Theory of evolution by natural selection - Coggle Diagram
Theory of evolution by natural selection
Example
Deer mince
migrated from Nebraska
change from dark brown to light brown
helped them hide from predators
allowing them to survive in the environment
this was a genetic change
How does natural selection work
genetic mutations are beneficial to an individual are passed on to reproduction
results in a new generation of organisms that are more likely to survive and reproduce
example
giraffes have evolved to have long necks
shorter necks access less foods which should be unlikely to survive and pass on their genes
process where populations of living organisms adapt and change
occurs when mutations change to an organism DNA are advantageous
https://www.nhm.ac.uk/discover/what-is-natural-selection.html
What is natural selection
mechanism of evolution
used to account for millions of species that live on earth
states that the most complex organisms occur totally by natural selection
individuals have characteristics that give it an increased change of survival where they live
organisms that survive are better adapted
https://www.nationalgeographic.org/encyclopedia/natural-selection/
key features of evolution by natural selection
Darwin's process of natural selection had four componets
Variation
variations include: hair, colour, size
Inheritance
favourable traits are passed on to offspring
high rates of population growth
more offspring being produced
survival and reproduction
animals survive and reproduce
what is evolution by natural selection
if the environment rapidly changes
animals might not be able to adapt quickly enough through natural selection
process through populations of living organisms change and adapt
https://www.solpass.org/science6-8-new/s7/standards7/ls11-2018.html?section=study-6
why is natural selection important for populations
favourable traits are passed on
through generations
natural selection can lead to speciation
one species gives a rise to a new and obesely different species
one of the process that drives evolution and helps explain diversity of life on earth
