Answer:
Until the past decade, scientists, research institutions, and government agencies relied solely on a system of self-regulation based on shared ethical principles and generally accepted research practices to ensure integrity in the research process. Among the very basic principles that guide scientists, as well as many other scholars, are those expressed as respect for the integrity of knowledge, collegiality, honesty, objectivity, and openness. These principles are at work in the fundamental elements of the scientific method, such as formulating a hypothesis, designing an experiment to test the hypothesis, and collecting and interpreting data. In addition, more particular principles characteristic of specific scientific disciplines influence the methods of observation; the acquisition, storage, management, and sharing of data; the communication of scientific knowledge and information; and the training of younger scientists.1 How these principles are applied varies considerably among the several scientific disciplines, different research orgrecently, a few research institutions have developed guidelines for the conduct of reserch
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Answer:
The correct answer is: Parathyroid Hormone.
Explanation:
- The Parathyroid Hormone (PTH) can be defined as a small peptide hormone that is secreted by the Parathyroid Glands.
- The Parathyroid glands can be defined as small and round structures (usually four in number) which remain interspersed in the posterior region of the thyroid gland, but remain separated from the thyroid gland by a layer of connective tissue.
- The parathyroid gland is composed of specialised epithelial cells known as Chief Cells which are responsible for the secretion of the Parathyroid Hormome (PTH) in response to low level of calcium in the blood.
- Functions of the PTH hormone are:
- The PTH is responsible for activating the osteoclast cells and inhibiting the osteoblast cells in the bone.
- The osteoclast cells are responsible for secreting enzymes which stimulate the degradation of bone cells and promotes the release of calcium from the bones into the tissue fluid.
- The osteoblast cells are responsible for storing calcium in the bones by promoting the deposition of calcium in the bone cells.
- The PTH is also responsible for promoting calcium re-absorption from the urinary filtrate in the tubules of the kidney.
- It also induces the production of calcitriol (activated form of Vitamin D3), which is a steroid hormone, in the kidneys.
- Calcitriol is responsible for inducing the absorption of the calcium, taken in the diet, through the intestinal lining.
<span>The answer False. Male older adults are not abused at a higher rate than women.
Much gender-based violence or abuse is directed towards women. This term is treated on the war against women, but a war in gender violence is a man's issue.</span>
Answer:
Invasive species, also called introduced species, alien species, or exotic species, any nonnative species that significantly modifies or disrupts the ecosystems it colonizes. Such species may arrive in new areas through natural migration, but they are often introduced by the activities of other species. Human activities, such as those involved in global commerce and the pet trade, are considered to be the most common ways invasive plants, animals, microbes, and other organisms are transported to new habitats.
Most introduced species do not survive extended periods in new habitats, because they do not possess the evolutionary adaptations to adjust to the challenges posed by their new surroundings. Some introduced species may become invasive when they possess a built-in competitive advantage over indigenous species in invaded areas. Under these circumstances, new arrivals can establish breeding populations and thrive, especially if the ecosystem lacks natural predators capable of keeping them in check. The ecological disruption that tends to follow such invasions often reduces the ecosystem’s biodiversity and causes economic harm to people who depend on the ecosystem’s biological resources. Invasive predators may be so adept at capturing prey that prey populations decline over time, and many prey species are eliminated from affected ecosystems. Other invasive species, in contrast, may prevent native species from obtaining food, living space, or other resources. Over time, invading species can effectively replace native ones, often forcing the localized extinction of many native species. Invasive plants and animals may also serve as disease vectors that spread parasites and pathogens that may further disrupt invaded areas.Invasive species are capable of causing extinctions of native plants and animals, reducing biodiversity, competing with native organisms for limited resources, and altering habitats. This can result in huge economic impacts and fundamental disruptions of coastal and Great Lakes ecosystems.
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