Answer:
Mechanical
:
Support. Bones provide a framework for the attachment of muscles and other tissues.
Movement. Bones enable body movements by acting as levers and points of attachment for muscles.
Protective
:
Bones such as the skull and rib cage protect vital organs from injury. Bones also protect the marrow.
Metabolic
:
Mineral storage. Bones serve as a reservoir for calcium and phosphorus, essential minerals for various cellular activities throughout the body.
Blood cell production. The production of blood cells, or hematopoiesis, occurs in the red marrow found within the cavities of certain bones.
Energy storage. Lipids (fats) stored in adipose cells of the yellow marrow serve as an energy reservoir.
Explanation:
According to the copernicus, the first duty of the astronomer is observation.
What did Copernicus believe?
Nicolaus Copernicus (1473–1543) was a mathematician and astronomer who proposed that the sun was stationary in the center of the universe and the earth revolved around it.
How was Copernicus theory proved?
- Galelio discovered evidence to support Copernicus' heliocentric theory when he observed four moons in orbit around Jupiter.
- Beginning on January 7, 1610, he mapped nightly the position of the 4 “Medicean stars” (later renamed the Galilean moons).
Learn more about Copernicus here:
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The European nations that established colonies in South America were Spain and Portugal.
Answer:
Explanation:
China is the largest Asian country entirely within asia. it is also the oldest.
