Sawyer observed ants digging tunnels in his back yard and wondered what time of day the ants were most actively digging the tunnels. He decided to investigate whether ants dig longer tunnels in the light or in the dark. He thought that ants used the filtered light that penetrated the upper layers of soil and would dig more tunnels during the daytime hours. Ten ant colonies were set up in ant farms with the same number and species of ants per ant farm. The same amount of ant food was given to each colony, and the colonies were kept at the same temperature. Five of the colonies were exposed to normal day light and five were covered with black construction paper and did not receive light. Every other day for three weeks, Sawyer measured the length of the tunnels in millimeters using a string and a ruler. Averages for the light and dark groups for each measured were calculated. The averages are listed in the following chart.

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.

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves