Order of DNA replication/ Topoisomerase removes stress on the DNA strand above the replication fork. DNA replicates in the S phase of the cell cycle before mitosis begins. DNA polymerase III attaches free-floating complementary nucleotides in small sections of the lagging strand, callled Okazaki fragments. Helicase unwinds the DNA strand at the replication fork. DNA ligase stitches the Okazaki fragments together to make a complete strand of DNA. DNA polymerase III attaches free-floating nucleotides in the 3' to the 5' direction along the leading strand. Helicase rewinds the DNA at the replication fork. RNA primase creates an RNA primer on the lagging strand, starting at the 3' end.

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.

it has to be understood that the sea water contains a huge amount of sodium and chlorine ions and if they enter the cell of the atlantic cod fish, the cell will shrivel and the fish will die. to avoid such a condition, the fish uses active transport for the purpose of removing the ions against the gradient.

explanation:

the atlantic cod is not a maritime osmoconformer. its native application of salts is less than that of the seawater it lives in. it is continually falling water from the gills to the ocean via osmosis.

countering that, the fish is going to be swallowing seawater. but since its internal collection of salts is lower than seawater, the fish will want to go free of excess salt, and since that's going upon a gradient, then active transport, requiring energy, must be used to pump out the salt. much marine fish use the organs to filter out the salt and these fish discharge very straight urine.