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Why do light colored moth get eaten more than dark colored moths?
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Which is the best hypothesis for why the white colored moth population decreased?
Answer this question… B.The dark-colored moths were more fit.
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.
Peppered moths use the adaptation of camouflage as protection from predators They may have a variety of colors or shades but before the Industrial Revolution they were typically white with black?
The population of light-colored moths decreased and the population of dark-colored moths increased.
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
What is a foliated dense rock that has light and dark colored banding?
Gneiss
An experiment is performed with peppered moths. The table below shows the populations of light-colored moths and dark-colored moths before and after the trees turned black.?
the dark-colored moths were more fit. ( apex )
If the bark of the trees is dark and the moths that rest are light what happens to the moths?
They will adapt to the environment and become dark-colored moths.
If the bark of trees is dark and the moths that rest there are light what might happen to the moths?
They will adapt to the environment and become dark-colored moths.
An experiment is performed with peppered moths. The table below shows the populations of light-colored moths and dark-colored moths before and after the trees turned black. Which best describes the re?
The dark colored moths were more fit.
Which is the best hypothesis for why the white colored moth population decreased?
Answer this question… B.The dark-colored moths were more fit.
The sudden appearance of a light-colored moth in a large population of dark-colored moths was probably the result of?
A mutation
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.
Peppered moths use the adaptation of camouflage as protection from predators They may have a variety of colors or shades but before the Industrial Revolution they were typically white with black?
The population of light-colored moths decreased and the population of dark-colored moths increased.
What caused England's biston betularia moths populations to change over time from light colored to dark colored?
Changes in allele frequencies Novanet
What is the change that occurred in peppered moths?
In the 1800's in the UK (England), lots of factories were burning coal and wood which put up a bunch of smoke and soot in the air. Well, most of this had to come down somewhere. The trees in this area were a light greyish brown color originally. There were these light colored moths called peppered moths - they were whitish color with some light grey spots here and there. They blended in perfectly with the trees. There were other moths of the same species with different colors, mostly dark grey with whitish speckles, those were often eaten off the trees because they were easy to see. As the soot fell over many many years, it stained the trees a dark brown - blackish color. NOW, those dark grey moths blended in perfectly, and the light colored moths acutally started to die off because the birds could see them easier, so they ate them. Over time, the dark colored moths became more in numbers. Check out this cool site I use with my students: http://www.biologycorner.com/worksheets/pepperedmoth.html
From where did the gypsy moth come from?
They were always around but they were more visible on light colored tree bark so birds ate more of them than the light colored moths that were better camouflaged. Once the soot stained the trees the light colored moths were more visible so, the dark colored moths had an adaptive advantage because they were better camouflaged against the dark bark.
If the bark of the trees is dark and the moths that rest on them are light what might happen to the moths?
They might get separated from the rest of the group. If they are newborns, they won't know where to go. Then they won't get to their group migration place and they could starve if they don't find the nutrition they need.
