The map of a walking trail is drawn on a coordinate grid with three points of interest. the trail starts at r(−1, 4) and goes to s(5, 4) and continues to t(5, −2). the total length of the walking trail is units. (input whole numbers only.) numerical answers expected! answer for blank 1:

Length of the walking trail is 12 units.

Explanation:

Three points of the walking trail are R(-1,4),S(5,4)and T(5,-2). so we have to calculate the distance between points R and S and also between S and T. finding the sum of these distances would give the distance of the walking trail.

The equation to calculate the distance between two points and is  

RS=  

=

ST=  

=

length of the walking trail = RS+ST= 6+6 =12

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.