Answer:
Reducing the amount of light improves contrast, making the specimen "stand out" against the background. Some microscopes have an annular condenser, which is a plate under the stage that can be rotated. The plate consists of holes of different diameter.
Explanation:
It would be carbon dioxide
Answer:
Please see below
Explanation:
Shikonin is a natural drug used in the wise traditional Chinese medicine to treat inflammatory diseases. Its use as an anti-cancer drug has been recently discovered. It affects the concentration of calcium ions and ROS (Reactive Oxygen Species) which induces a loss of function in the cancerous cell mitochondria. This deprives the cancer cell of the needed energy to function.
Answer: irregular,inconsistent, unsteady, uneven, shaky, fitful, patchy, variable, varying, changeable, changing, ever-changing, on-and-off, off-and-on, inconstant, erratic, haphazard, unstable, unsettled, spasmodic, sporadic, episodic, intermittent, occasional, unpunctual, wavering, fluctuating, aperiodic, unsystematic, unmethodical, ...