abiotic factors allow this to happen
It begins every year on the in January and last 140 days
Bacteria and fungi, compete for the same ecological niche.
After eating a meal high in calcium, blood calcium levels are returned to normal through the use of a negative feedback loop.
- Increased calcium levels in the serum serve as a negative-feedback loop signaling the parathyroid glands to stop the release of PTH.
- The mechanism of PTH in the body is intricate, and the clinical ramifications of irregularities are significant.
It involves regulation of the blood calcium level.
The parathyroid glands secrete parathyroid hormone, which regulates the level of calcium in the blood. If calcium decreases, the parathyroid glands sense the decrease and secrete more parathyroid hormone
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Answer 1.- Well a duck is still a bird. So it has hollow bones that makes its body lighter.It eats insects, worms amphibians and plants, so it's an omnivore.2. It has hollow bones, it has an oily coating that prevents any water from settling in its duck feathers. 3. Feature no. 1-Makes body lighter so it's easier to swim, Feature 2- oily coating prevents water from getting into the feathers, preventing any water being absorbed into their bodies.
Explanation: