Answer AND Explanation:
Bone tissue consists of an organic matrix which is impregnated with calcium salts especially phosphates and carbonates. The organic matrix confers toughness to bone while calcium salts confer hardness. Small blood vessels called haversian canals supply the bone with oxygen and nutrients. Cartilage is afirm bu flexible substance which is less rigid than bone. It consists of an organic matrix in which are embedded spherical cells called chondroblasts.
Answer:
When the calcium level is high in the bloodstream, the thyroid gland releases calcitonin. Calcitonin slows down the activity of the osteoclasts found in bone. This decreases blood calcium levels. When calcium levels decrease, this stimulates the parathyroid gland to release parathyroid hormone.
Depends on the type of energy. If it is biological energy the answer would be yes since it comes from the sun
Saturated fatty acids are 'saturated' with hydrogen meaning they contain the maximum number of hydrogen. This causes them to be straight on the molecular level, allowing them to be packed close together other saturated fatty acids. Thus, they tend to be solids at room temperature. Examples of saturated fats are butter and the solid white fat you see on raw meat.
A small cell lived inside a larger cell to the benefit of both cells.
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