Please enable JavaScript.
Coggle requires JavaScript to display documents.
Natural Selection, download, download-2, download-3, download-4, download…
Natural Selection
-
Some Peppered Moths developed a random Mutation turning them black. This new trait helped the moths to adapt to the darkened environment and camouflage.
The Darkened Moths started to reproduce more often due to the increased survival time by blending into the environment. the offspring of the Darkened Moths became darkened as well causing them to survive for longer and pass down the trait to more and more moths.
Once the environment for the moths turned lighter the remaining white moths started to survive for longer due to their color camouflaging them into the environment. The white moths then started to reproduce causing the offspring to turn white as well. Soon the population became dominantly white.
-
Some Woodworms developed mutations that changed their color. Depending on what color they were determined whether their new variation was positive or negative.
Since the Woodworms that developed a mutation had different colors than the standard Woodworms there was a chance their new color would have a positive effect. The new color could camouflage the Woodworm into the environment. Because they are now camouflaged they have a higher survival rate. The worms with the variation would then reproduce and the offspring would now have the trait.
Since the Woodworms that developed a mutation had different colors than the standard Woodworms there was a chance their new color would have a negative effect. There was a chance that the new color would make the worms stand out from the environment. this would cause the predators of the Woodworms to be able to find and consume them more easily. Because the predators could find the mutated worms easier they would have a shorter lifespan and less of a chance to reproduce and pass on the trait.
-
In the past soldiers would hunt down elephants with tusks to sell their ivory for bullets. the only elephants to survive were a few elephants with tusks and mainly the ones with no tusks.
Since the only elephants to survive were the tuskles ones they would have a higher chance of producing offspring. Since tusks are a genetic trait the offspring of the tuskless elephants that survived would also be tuskless.
After soldiers stopped hunting elephants with tusks the elephants that do have tusks started reproducing and started passing down the tusk trait.
-
Bacteria has been shown to continue spreading through an area until it is met by something harmful to it. this can be seen when bacteria comes into contact with antibiotic.
When the bacteria is met by an antibiotic it stays there since it cannot survive. New bacteria that is produced could develop a random mutation that that could be resistant to the antibiotic. The new variant of the bacteria would reproduce and create a new strain of the original bacteria that is resistant to the antibiotic.
-
Some Pocket Mice developed mutations that changed their fur color. The new variant of fur color could help the Pocket Mouse blend into the colors of their surroundings acting as camouflage.
some pocket mice would develop a random mutation that could change their fur color. If the fur color was a negative or unhelpful change the mouse would die without passing on the trait. If the random mutation gave the mouse a fur color that helped the mouse survive by blending into the surroundings. they would have a higher chance of reproducing, passing on the trait
-
All of the organisms on the map are connected in one major way. Each organism shows that they gained a trait from natural selection that helps them survive in their environment thus increasing their life span. You can see that the organisms experienced natural selection because through a random mutation an organism gained a trait that helped them survive in the environment. They then passed down the trait via reproduction affecting the whole population.
-
-
-
-
-
-
-
-
-
-
