When blood calcium levels drop, glands embedded in the posterior thyroid secrete parathyroid hormone, which stimulates osteoclastic activity. It is made up of parathyroid glands that lie behind the thyroid glands. The reason why it is important because it controls calcium level in the blood and within the bones. It controlled by the low calcium levels in the blood it restorative parathyroid secretion whereas the high calcium levels in the blood stop the release of parathyroid hormone.
The one that most accurately describes our solar system is:
D. Outer planets are farther from one another than are inner planets.
Answer:
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Your answer is A. have their own function.
Specialized cells are cells that have a specific function in the body of a multicellular living being. These cells can function to form tissues, organs, muscles, bones and other body structures.
An example of a specialized cell is a stem cell!
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In bacteria, they play an important role in bacterial multicellularity. Cellulose and chitin are examples of structural polysaccharides. Cellulose is used in the cell walls of plants and other organisms, and is said to be the most abundant organic molecule on Earth.
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He is right, it’s A. loss of Biodiversity.
