When the starfish were removed from the area as part of an experiment, the mussel population swelled and crowded out other species. The biodiversity of the ecosystem was drastically reduced. Payne's study showed that identifying and protecting keystone species can help preserve the population of many other species.
They are called the chief cells. These cells are found in the parathyroid gland. they produce PTH and increase Ca2+ levels. These are small round cells with a central nucleus. PTH is antagonist to calcitonin which reduces Ca in body. Parathyroid glands found on the posterior surface of thyroid gland. There is a superior/inferior one. They are made up of chief and oxyphil cells, the chief cells produces the parathyroid hormone while the oxyphil cells no one knows what they do.
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Answer: C. 0.024
Explanation:
The pvalue 0.024 is < 5% which shows that the expected number of offspring were statistically different from expected.
