Brian often interrupts his teacher while she is speaking and frequently forgets to complete his homework assignments. He also has difficulty taking turns in playground games with classmates. Brian most clearly exhibits symptoms of DID. OCD. PTSD. ADHD.

Brian most clearly exhibits symptoms of ADHD

Explanation:

ADHD stands for Attention Deficit Hyperactivity Disorder is a medical condition where the affected person develops different brain developmental process that leads to poor attention,restlessness,impatient or impulsive etc.

This type of symptoms are mainly found in children and it may lasts upto adulthood.

This type of behviour affect the child in school and at home.

To cure this disease,the affected person should consult the doctor,apply different therapy,medicines are also used to cure this disease.

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.