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What event caused the tree trunks of many trees in England to from light to dark?
Burning of coal during the industrial revolution and later deposited soot on the trees.
Why is there an increase in the number of dark colored peppered moths occurred during the industrial revolution?
birds couldn't see the dark-colored moths on the trees darkened by industry.
American trees during the 1600s?
they were old
Why did the dark colored moths outnmber the light colored moth during the Industrial Revolution?
AnswerThr trees that the moths resided on had previusly been a light white/grey colour. However, there was so much pollution as a result of the Industrial Revolution that the soot darkened the trees to a dark grey/blackish colour. The white moths had a higher population prior ot the Revolution because they blended into the trees and predators would eat the dark moths. But, once the trees became stained a darker colour, the light coloured moths were no longer able to blend into the trees.DANGER! The above is a synopsis of Kettlewell's conclusions after his experiments with peppered moths in Great Britain during the 1950's. Later analysis has shown that Kettlewell's experiments were seriously flawed. Kettlewell "proved" that birds ate peppered moths perched on tree trunks during daylight hours by introducing a large population of peppered moths in enclosures with trees and birds, then he showed that the birds ate more of the light colored moths off the dark colored trees. Unfortunately, in nature, peppered moths are nocturnal, they hide during daylight hours, flying and feeding only during darkness, they do not normally perch on tree trunks during daylight hours. Also, bird predation is a trivial factor in peppered moth evolution, the main predators of peppered moths are bats, which catch them in flight not resting on tree trunks. Lastly, after tougher pollution laws took effect in the 1960's, and tree trunks became lighter again, Kettlewell did field observations which supposedly showed a rebound of light colored moths and the decimation of dark colored moths. While Kettlewell's original field notes have never been found, his observations do not comport with later and more scientific field studies. Bottom line - color camouflage and tree trunk color may have a tiny effect on light vs. dark moth populations but major shifts in moth coloration are dependant on other factors and whether there was actually a major shift in moth coloration (outside of Kettlewell's imagination) is open to question
Why were trees more important to the people of the eastern woodlands and north west coast than they were to the plains?
because all their suplies were made of trees
What event caused the tree trunks of many trees in England to from light to dark?
Burning of coal during the industrial revolution and later deposited soot on the trees.
How was timber transported during the industrial revolution?
If the trees were logged in a remote wilderness area, the usual method of transportation was to float them on rivers. In more developed regions, timber was transported by train.
Why is there an increase in the number of dark colored peppered moths occurred during the industrial revolution?
birds couldn't see the dark-colored moths on the trees darkened by industry.
What historical event caused the tree trunks of many trees in England to turn from light green to dark?
The industrial revolution
Why happened in England that changed the bark on the trees light to dark?
The industrial revolution in England (the black smoke form all the factory chimneys) produced allot of environmental pollution and the trees in the worst affected areas were covered in soot. Now thankfully this pollution has ceased and the tree trunks are no longer black...I understand that the areas of black peppered moth variants are now reverting to the light colored variety.
What is the melanic form of the peppered moth?
The peppered moth is a classic example used to demonstrate natural selection. It is said that the peppered moth began a light color to blend in to the trees so it would escape being eaten by its predators. However, during the industrial revolution smog darkened the trees and the peppered moth became better adapted as a dark color.
Why has the peppered moth that lives in the city developed dark wings and the moth that lives in the countryside developed pale wings?
Because before the industrial revolution, the bark of the trees they lived on was light, therefore the dark ones could be easily seen and eaten by predators, causing only the lighter ones to survive. When the industrial revolution came about, the trees near factories were covered in soot and blackened by the pollution, therefore the darker moths couldn't be seen and eaten so they survived wheras the lighter moths could be seen and eaten.
What happens to evergreen trees in spring?
nothing happens to them
How do trees produce sugar and what happens to the co2?
they use the co2 to make sugar during photosynthesis and it happens when it takes in sunlight, water and co2 in the Calvin cycle its byproducts are oxygen and water
How do you explain the change in coloration of the English peppered moth?
These moths started out with a whitish color to camouflage into trees. Due to pollution, these trees turned a darker color. This means these light moths can easily be seen. The darker moths have more of a chance of surviving in their environment. So, these moths were able to reproduce, adapting to the new environment. So now they are a darker, black color to blend in with the trees better.
What happens to the leaves of deciduous trees?
No
What would happen if there were no street trees around?
If there were no trees the amount of oxygen in the air would be less. Because trees and plants takes carbondioxide and release oxygen during the process of photosynthesis. If so happens living beings can not survive on the Earth
