Key Points. Lactate concentration in blood is a measure of anaerobic metabolism, which occurs when cells are not getting enough oxygen to support normal aerobic energy production. An elevated lactate level is most commonly caused by a decrease in blood flow to the cells, systemically or locally.
discovery noun (FINDING) B2 [ C or U ] the process of finding information, a place, or an object, especially for the first time, or the thing that is found: the discovery of electricity. Leonardo made many scientific discoveries.
(The Discovery School site below gives the following definition: Invention is the creation of a new device, process, or product.. The Merriam-Webster Dictionary defines invention as: an original device or process.) Ask students to name inventions they can see in the classroom. For each invention, ask them to describe what the invention is used for. As they brainstorm, keep a list on the board.