What nutrient is matched with its correct function? A
fats: main source of energy for the body
B
carbohydrates: building blocks of hormones and vitamins
с
proteins: used for growth and repair of the body
D
vitamins: secondary source of energy
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answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

d.embryo is the correct one

what about it?

is this a ?