2. The environments are all patterned fabrics. If your first env purple stars on
ID: 3165875 • Letter: 2
Question
2. The environments are all patterned fabrics. If your first env purple stars on a black background, which of these fabrics would change? Why? environment is composed of neon yellow and you choose for your environmental a. gray trees on a white background b. yellow and red flowers on a green leafy background c. red and orange geometric shapes d. all black fabric 3. In the above situation, imagine that in the first three generations, the number of purple and orange mice steadily increased, while the number of white mice decreased to zero. What do you expect to happen to the numbers of purple, orange, and white mice after the environmental change? Why?Explanation / Answer
May animals can exhibit change in behavioral pattern or physical adaptation according to the change in their environment. These adaptations also help them to survive by abiding the theory of natural selection.
Mice population also show such adaptations, as observed by thicker coats in colder environments, or change in coat colour according to the colour of the environmental background. Change in coat colour, helps animals to camouflage and blend with the environment. This helps them to survive better, especially against other predator animals feeding on them (such as owls feeding on mice).
The environmental and background colour plays an important role in such camouflage effects, the light emitted by the environment in different phases of light intensities, creates a variation in the blending of the coat colour of the mice with the environment. Mutations and adaptations by changing coat colour, has been significant for natural selection and the survival rate in mice.
2. In this case, the environmental colour contains neon yellow and purple stars in dark background. The orange coloured mice can blend with the neon yellow colour, while the purple mice can blend with the purple coloured environment. There is no suitable colour, to observe the adaptation of the white mice populations.
To bring about an environmental change, the choice of fabric should be:
a. Grey trees on white background.
3. When environmental colours comprise of neon yellow and purple, it suits the survivability of orange and purple mice population. White coloured mice do not have any close colours to blend with, especially with the dark background. Thus, it is observed that the adaptation leads to steady increase in orange and purple mice populations, while, white mice population decreases to zero.
If the environmental change, leads to advantage (for colour adaptation) or is in favour of white coloured mice, it will be observed the number of white mice will increase compared to orange or purple mice
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