During a lunar eclipse, the Earth gets in between the sun and the moon
When you wake up a sleep walker, they will be startled, and can have an outburst.
As shown in detail in the absorption spectra, chlorophyll absorbs light in the red (long wavelength) and the blue (short wavelength) regions of the visible light spectrum. Green light is not absorbed but reflected, making the plant appear green
Cholera develops when the bacterial toxin prevents G-protein inactivation , which leads to the continuous production of cAMP.
The spiders that survived the first pesticide spraying were resistant to the pesticide and when they reproduced most of their offsprings got the gene of pesticide resistance.