The 'cheek' is the common name for the insect GENA.
The gena is located in the head area of insects. The gena forms the sclerotized area on each side of the head, below the compound eyes, which extends to the gular structure. The gena varies among species of insects.
The failure of homologous chromosomes to separate properly is during meiosis where mutation appear
ATP in biology stands for Adenosine triphosphate. It’s an energy carrying molecule found in the cells of all living things. It captures the chemical energy obtained from the breakdown of food molecules and then it releases it to other cellular processes
The trapping of the sun's warmth in a planet's lower atmosphere due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface.