Archaea and Eubacteria are both forms of bacteria. Look at the short definitions of both of them. How are they different?

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?

What are the three different shapes or structures shapes or structure of carbon-based molecules?