Ok i have three questions that i can't find anywhere...

1. Carbon dioxide and water are excreted here during exhalation.

2. Structures in the skin which excrete water. salts, and some urea.

3. Removes toxic substances from the blood and converts excess amino acids to urea.

THANKS! :D

1. Carbon dioxide and water are excreted during exhalation in the respiratory system. To find this answer, you could start by understanding the process of respiration and how gases are exchanged in the body. The respiratory system includes organs such as the lungs and respiratory passages, which are responsible for exchanging oxygen and carbon dioxide. During exhalation, the diaphragm and intercostal muscles contract, causing the volume of the thoracic cavity to decrease, and air rich in carbon dioxide is expelled from the lungs.

2. The structures in the skin that excrete water, salts, and some urea are sweat glands. To find this answer, you need to understand the role of sweat in maintaining body temperature and eliminating waste products. Sweat glands are found throughout the skin and are responsible for producing sweat. The sweat is then released onto the skin's surface through tiny openings called sweat pores. Sweat is mainly composed of water, electrolytes (salts), and some urea, which are excreted through the process of sweating.

3. The organ responsible for removing toxic substances from the blood and converting excess amino acids to urea is the liver. To find this answer, you could focus on understanding the major functions of the liver in the body. The liver plays a vital role in metabolism, detoxification, and synthesis of various substances. It filters blood to remove toxins, drugs, and metabolic waste products. The liver also helps convert excess amino acids, which are the building blocks of proteins, into urea, which is excreted by the kidneys in urine.

Carbob dioxide and water are excreated here during exhalation. THE LUNGS

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