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They evolved in response to changing selection pressures (specifically predation by birds) as levels of pollution changed. The pollution reduced the effectiveness of the moths natural camouflage, resulting in the more visible moths being eaten by birds in large quantities, the less visible moths then were the only ones reproducing and their color became dominate in the population.
What else can I help you with?
Which is a result of a seasonal change?
Rabbits changing fur color APEX*
What are the 5 indications of a chemical change?
1. releasing of heat 2. change of color 3. bubbling 4. change of smell 5. precipitation
What are the three types of a physical change?
transition phases from solid to liquid to gas.
What are the six types of evidence for a chemical change?
Types of evidence for chemical change include: A gas is evolved. A precipitate appears or disappears. Heat may be evolved or absorbed. A color change occurs. A substance disappears.
Is color a physical change?
Only if the color change is not permanent. Take Iodine for example (that's pronounced Eye-oh-deen), it is a solid metal that is grayish in color in its solid state, however in its gas state it's a purple or violet color. Once it reverts to its solid state, it turns gray again. This is a PHYSICAL property of Iodine. If the color changed permanently to something else, it would be a chemical change.
A color change on metal that is caused by a chemical change?
tarnish or something
What are two effects caused by a chemical change?
Two effects that are caused by a chemical change are changes from one substance into another. Another effect that can be caused by a chemical change is a change in the temperature of the surrounding system and substance, or a change in color of the substance.
What is a color change on metal that is caused by a chemical change called?
The color change on metal caused by a chemical change is called tarnishing. Tarnishing can result from exposure to elements such as oxygen, sulfur, or other chemicals, leading to discoloration or darkening of the metal surface.
What causes a bruise?
It is caused by a bunch of broken blood vesseles, causing the color of a bruise to change.
What is the color of the indicator when it mixes to calamansi?
When an indicator mixes with calamansi, it usually turns a pink or reddish color. This color change is due to the change in pH level caused by the acidic nature of calamansi juice.
Is cabbage juice and vinegar a chemical or chemical change?
The color change, though physical by itself, is caused by a chemical change of some colored substances in cabbage.
Copper turns a greenish color is it chemical or physical change?
The color change of copper to green is a chemical change. This is due to the formation of a green patina on the surface of the copper, typically caused by oxidation reactions with the air and moisture.
What is the London's flag's color?
London Dosent have a flag
Why does protein change colour?
Proteins can change color due to denaturation, which alters their structure and causes them to reflect light differently. This change can be caused by factors such as heat, pH fluctuations, or exposure to chemicals, leading to a change in the protein's appearance and color.
The change in the color of tree leaves in fall is an example of a physical change?
The change in the color of tree leaves in fall is actually a chemical change caused by the breakdown of chlorophyll. The colors we see are due to pigments that were present in the leaves all along, but were masked by the dominant green color of chlorophyll during the growing season.
What is the best explanation for the color change that occurred inside the cell?
The color change inside the cell could be due to a chemical reaction that altered the properties of the compounds present, causing them to absorb and reflect light differently. This change in the molecular structure or composition can result in a visible change in color.
What is the majority color of your poop?
brown
