Answer:
I think it's (Letter A) A bird has brown feathers that help it blend with ground where it's nest is located.
I hope this helps
Explanation:
Answer:
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A wavelength of light of 317.9 nm has enough energy which can damage our DNA easily.
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Explanation:
DNA is a polymer of nucleotide, which can be damaged by light and various other factors.
Wavelengths less than or equal to 317.9 nm can damage DNA molecule.
Energies greater than 3.9 eV or equal to this energy, can damage our DNA easily. Smaller wavelengths as compared to longer wave lengths have photons with greater energy, the wavelengths those less than 317.9 nm should blocked by a good sunscreen.
Answer:
For example, addition of an orange chromic acid reagent to some compounds causes the chromium reagent to change to a blue-green color (Figure 6.37a). This is considered a "positive" test result, and in this case indicates the presence of a functional group that can be oxidized (alcohol or aldehyde).
If Lorenzo would quit smoking,reduce his intake of alcohol and improve his healthy eating behaviors and also increasing his physical activity it would mean his lifestyle changes would then increase telomerase activity. Increase telomerase is one way of the body to deal with stress and for the protection of DNA from destruction.
It keeps changing its shape because amoeba move around with pseudopodia (false feet) for taking food and to adapt to their environment.