What is the mass measurement shown on the scales of this balance? 73.923 g 70.392 g 73.92 g 70.923 g

Why do cells appear different in distilled water than they do in 10% salt water?

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.

What is the name of the enzyme that forms at the start of transcription?