The right answer is; This is important for laboratory safety.
Before using any chemical in the lab, one should first read the Material Safety Data Sheet (MSDS) because it is important for laboratory safety.
A Material Safety Data Sheet (MSDS) is a technical document that contains detailed information about the protective measures to take, and the possible hazards of a chemical. The Material Safety Data Sheet (MSDS) is available for all the chemicals used in the laboratory and it may be written, printed or electronic.
Answer:
Id say a map
Explanation:
Globe is 3d, geometer is math, map is 2d, landmark is smth on a map
Answer:
Calcium
Explanation:
Parathyroid hormone (PTH) is a hormone that is secreted by the parathyroid gland. It is the major regulator of the plasma concentration of calcium ions. It regulates calcium ions in the kidney, intestine and bones.
In the kidney, is involved in the re-absorption of calcium in distal ducts and the renal collecting duct, it is also involved in activating the conversion of 25-hydroxy vitamin D into 1,25-dihydroxy vitamin D (calcitriol).
In the intestine, PTH is involved in the absorption of calcium, by increasing vitamin D production.
In the bone, it helps in regulating calcium levels; when serum calcium level is low, PTH stimulates the activity of the osteoclast, to produce more calcium.
If the solute concentration is equal both inside and outside of the cell it is isotonic
People in everyday language use theory as a guess and estimation
Scientists use scientific method and do all sorts of experiments to prove their theory
