Which of the following could be considered a reliable source of scientific information? a. a scientist's presentation of experimental results at a scientific conference. b. a sales representative's glowing description of the benefits of a new drug. c. an elected politicians claims concerning the validity of a scientific study. d. a newspaper reporter's article about the results of a secret experiment.

The correct answer is option A- A scientific presentation of experimental results at a scientific conference.

Reason: A scientific presentation contains all the information which is based on experimentation and research of years and years. All the information is a scientific presentation would be factual and contain authentic data.

On the other hand, the other entire options even if contain information would not be authentic and contain errors and words of mouth.

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.