1 00:00:02,669 --> 00:00:08,250 We have so many systems. Like the skin. The skin is an excretory system. 2 00:00:12,890 --> 00:00:15,650 I want you to understand what is it called for that. 3 00:00:16,469 --> 00:00:19,429 From the word excrete, to remove. 4 00:00:21,109 --> 00:00:22,390 Excretory system. 5 00:00:23,390 --> 00:00:30,129 The skin, when you are playing Mario here, the boys, they all sweat. Is it? 6 00:00:30,129 --> 00:00:59,130 Yes. Through the skin. In the skin we have what you call skin pores. What you call what? Skin pores. Skin pores. And through the skin pores, the sweat comes through. So. Yes. So that is, that's why the skin is excretory system. We have the kidneys. You know kidneys? Yes. The kidneys fall under excretory system. Because they also, that's what you call excretion. 7 00:01:00,130 --> 00:01:04,530 We have the breathing system. Which organs? Which two organs are found in the breathing system? 8 00:01:06,109 --> 00:01:07,409 Breathing system, trachea? 9 00:01:07,569 --> 00:01:07,989 Lungs. 10 00:01:08,269 --> 00:01:09,909 Lungs. Hands up. 11 00:01:11,829 --> 00:01:13,049 Breathing system? No. 12 00:01:14,269 --> 00:01:14,829 Nose. 13 00:01:15,230 --> 00:01:15,709 Diaphragm. 14 00:01:16,510 --> 00:01:19,569 Diaphragm. That is breathing system. 15 00:01:19,989 --> 00:01:27,489 And that's why now we are not going to look at the digestive, breathing, excretory, but we are going to look at the reproductive system.