Answer: it helps with the liver, your kidneys and lungs
Explanation: The excretory system is a passive biological system that removes excess, unnecessary materials from the body fluids of an organism, so as to help maintain internal chemical homeostasis and prevent damage to the body. The dual function of excretory systems is the elimination of the waste products of metabolism and to drain the body of used up and broken down components in a liquid and gaseous state. In humans and other amniotes (mammals, birds and reptiles) most of these substances leave the body as urine and to some degree exhalation, mammals also expel them through sweating.
Answer:
thermometer
Explanation:
the usual means of measuring temperature is a thermometer.
Answer:
Since stars basically move freely through space, we can use their proper motions to predict where they will be in the future. A star can also move toward us or away from us, following what is known as radial motion. The combination of radial motion and proper motion determines a star's true motion relative to us.
Hoped I helped
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