During a single cycle blood goes twice in the heart which is known as double circulation. It is necessary in human being to separate oxygenated and de-oxygenated blood because this makes their circulatory system is more efficient and helps in maintaining constant body temperature. Advertisement Sapnapp Answer:

Double circulation is necessary in humans because it allows for the efficient transport of oxygen and nutrients to the body’s tissues while also ensuring that waste products are removed. The pulmonary circuit is responsible for oxygenating the blood and removing carbon dioxide, which is essential for the survival of all cells in the body.

Solution Verified by Toppr Correct option is A) Let the length be l and breadth be b according to the question l=5b−4 Since , Perimeter, P=2[l+b] 40=2[5b−4+b] 40=12b−8 12b=48 b=4 l=5×4−4 l=20−4 l=16 Therefore Length of the rectangle is 16m Was this answer helpful? 0 0 Similar questions

Joe Root has become the second England batter to score 10,000 Test runs. Root reached the landmark by scoring a century on day four of the first Test against New Zealand at Lord's. He is the 14th.

Solution Verified by Toppr Correct option is A) 2 Men = 1 Woman ⇒ 1 Men = 21 Woman ⇒ 3 Men = 23 Woman Again 2 children = 1 man = 21 Woman ⇒ 1 child = 41 Women ⇒ 6 childern = 46= 23 women. Now 3 Men , 4 Woman & sin x children = 23+4+ 23=7 Woman Hence 7 Woman computer the work in 7 days. Was this answer helpful? 0 0 Similar questions

Double Circulation: We know that each and every cell of our body needs oxygen and nutrients for survival or getting energy. And waste material has to be removed from each cell. There should be a proper system that can transfer substances ‘to and fro’ from each cell of the body. This can be achieved by the flow of blood from each cell.

Shubman Gill earned the distinction of becoming the 22 nd player to rack up a hundred in all three variations of the game. It only took him 40 games (52 innings) to achieve the milestone. Moreover, he has an ODI double-century to his name, with the Shubman Gill double century coming against New Zealand in early 2023.

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The advantage of double circulation is that it provides a more efficient way to get oxygen to all the cells in the body. In double circulation, the blood is pumped from the heart to the lungs, where the oxygen from the air is transferred to the blood. The blood then circulates through the rest of the body, where the cells use oxygen to produce.

1. How many types of circulatory pathways are present in the animal kingdom? a) One b) Two c) Three d) Four View Answer 2. How many chambers are present in the heart of crocodiles? a) Two b) Three c) Four d) Five View Answer 3. Which of the following organisms show single circulation? a) Fishes b) Birds c) Mammals d) Reptiles View Answer

As a result, the left ventricle (pump #2) forcefully pushes the blood through the arteries and capillaries of the body to get to the trillions of cells in need of oxygen. For the return trip, blood travels through the veins of the body to get back to the right side of the heart and repeat the process. So there you have it – one heart – two.

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