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Using aspects from the respiratory, digestive and circulatory systems in a mammalian body how can you get what you've eaten to the cells of your body? What you're eating can be things like fats, proteins and starches.

Using aspects from the respiratory, digestive and circulatory systems in a mammalian body how can you get what you've eaten to the cells of your body? What you're eating can be things like fats, proteins and starches.

Using aspects from the respiratory, digestive and circulatory systems in a mammalian body how can you get what you've eaten to the cells of your body? What you're eating can be things like fats, proteins and starches.

Using aspects from the respiratory, digestive and circulatory systems in a mammalian body how can you get what you've eaten to the cells of your body? What you're eating can be things like fats, proteins and starches.

Using aspects from the respiratory, digestive and circulatory systems in a mammalian body how can you get what you've eaten to the cells of your body? What you're eating can be things like fats, proteins and starches.

Using aspects from the respiratory, digestive and circulatory systems in a mammalian body how can you get what you've eaten to the cells of your body? What you're eating can be things like fats, proteins and starches.

Using aspects from the respiratory, digestive and circulatory systems in a mammalian body how can you get what you've eaten to the cells of your body? What you're eating can be things like fats, proteins and starches.

Using aspects from the respiratory, digestive and circulatory systems in a mammalian body how can you get what you've eaten to the cells of your body? What you're eating can be things like fats, proteins and starches.

Using aspects from the respiratory, digestive and circulatory systems in a mammalian body how can you get what you've eaten to the cells of your body? What you're eating can be things like fats, proteins and starches.