In order to survive, all the cells in your body need energy. ... To provide this energy, your cells must break down the glucose in your food during a process called glycolysis and convert it into pyruvate<span>, sometimes called pyruvic acid, and the molecule that feeds the Krebs cycle, our second step in </span>cellular respiration<span>.</span>
Answer:
Direct observation of evolutionary change: creation of drug-resistant bacteria.
Fossil record: discovery of transitional forms of animals, discovery of shells of extinct organisms
Homology: similarities in mammalian forelimbs, identical genetic code in fireflies and tobacco plants, vestigial pelvis in right whales
Biogeography: resemblance of endangered island species to neighboring mainland species,
The water molecules become close together and becomes a solid, the temperature is cold because the heat leaves the cup.
