Phenol red is used as the indicator for the Urea Medium because the indicator detects the formation of ammonia caused by the hydrolysis of urea done by the bacteria. Bromothymol blue is used in Simmons Citrate Agar because it effectively indicates the formation of carbonates formed by the consumption of citrate.
They have to adapt to the water, the animals in the ocean, the way they hear and see.
The best choice is D prokaryotes dont have a nucleus <span />
12is the speed of 6 seconds cause the bigger the secs the slower