They allow passage for large molecules which cant normaly diffuse throught the phopholipid layer and import and export ions
The role of the liver in waste removal is to filter urea out of the blood and into the bladder. Thus, option A is correct.
<h3>What is liver and its function?</h3>
The liver is a very important organ of human body and the weight of liver is 1.5 kg and width of liver is 15 cm. The colour of liver is reddish - brown.
The main functions of liver are it carries out the function of protein's metabolism and it excretes bile and it is also responsible for excreting cholesterol, hormones, bilirubin and drugs.
The liver also stores vitamins, glycogen, and minerals so it the center of storage also.
As liver is a very important organ so to maintain it's health a person have to maintain a healthy weight, take a balanced diet, regular exercise, avoiding toxins, and less use of alcohol leads to keep the liver safe and healthy.
Therefore, the role of the liver in waste removal is to filter urea out of the blood and into the bladder. Thus, option A is correct.
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Answer:
Salt melts ice essentially because adding salt lowers the freezing point of the water. ... Pure water freezes at 32°F (0°C).
Explanation:Water with salt (or any other substance in it) will freeze at some lower temperature.