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Carbohydrates are made of glucose and their mainly used for respiration to produce energy.

The optic nerve.

The lungs have many alveoli which provide large surface area thus diffusion occurs quicker. The alveoli have walls that are one cell thick providing a short distance for diffusion. In addition, there is ...

Transcription and translation are two of the processes involved in the production of a protein from it's gene. Translation, the first process, takes place within the nucleus. The DNA is unwound at the gen...