An animal uses its long sticky tongue to snag bugs out of the holes in trees. Over time the trees bark becomes thicker, making more difficult for the animals to reach the bugs. In order to reach the bugs, the animal stretches its tongue, eventually causing it to become longer. The organism
reaches the bugs, survives, and reproduces passing the long tongue trait onto its offspring
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Glucose, also called grape sugar, blood sugar or corn sugar, is among the simplest and one of the primary naturally occurring sugars. produced naturally by plants as the primary photosynthesis product, it is heavily used by living beings as a main energy source and is necessary for cellular respiration. chemically, it is a monosaccharide carbohydrate and serves as a building block for complex sugars like starch.

The process of photosynthesis