What is cladistics? A system of classification that consists of seven major levels
B system of classification based on physical characteristics
C system of classification based on evolutionary ancestry
D system of classification based on geographic range

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.

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