The greeks assigned what magnitude to the brightest star seen the night sky? 1

The Greeks attributed magnitude 1 to the brightest star seen in the night sky.

Explanation:

The Greeks created a system of magnitude based on the brightness of stars in the northern sky. It is not known for sure which astronomer was responsible for this, although many believe Hipparchus or Alexander Ptolemy is the creator.

These magnitude systems related the star's apparent brightness to its actual size. That way the brighter the star appeared in the night sky, the bigger its real size would be. For the brightest stars, magnitude 1 was associated.

both anaerobic and aerobic respiration use glucose (or other carbohydrates), proteins and lipids to produce atp and nadh. cell uses those energy molecules, obtained from food and   breaks them down during the chemical reactions of respiration. in anaerobic respiration, nadh is regenerated to nad+ by enzymes lactate dehydrogenase (lactate is produced, e.g. in muscle cells) or by alcohol dehydrogenase where ethanol is produced (alcohol fermentation), while in aerobic respiration, electrons from nadh are deposited in the mitochondria to regenerate nad+ (electron transport chain. anaerobic respiration produces 2 atp per molecule of glucose compared to aerobic respiration where about 38 atp molecules are produced.

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added