Bacteria to amphibians. amphibians started to turn to fish and some started walking to land. They started laying eggs and turning into reptiles. those reptiles started growing hair turning them into four legged mammals. the mammals then turned to primates which evolved into us.
The red blood corpuscles have a pigment called hemoglobin that binds to the oxygen and carries it to the whole body in both the conditions, when the body is at rest or when the body is exercising. The oxygenated blood from the heart is carried to the various parts of the body and the de-oxygenated blood from various parts of the body is carried to the lungs where the exchange of gases takes place.
Answer:
Chongqing, referred to as Ba and Yu, also known as Bayu, Shancheng, Yudu, and Qiaodu, is one of the four central municipalities in China, five national central cities, a national historical and cultural city, and the world's hot spring capital; the four major international metropolises positioned by the State Council, the Yangtze River It is the economic center, financial center and innovation center of the upstream region, as well as the center of politics, shipping, culture, science and technology, education, communication, etc., the national comprehensive transportation hub, and the large-scale water, land and air transportation hub in the western region. Chongqing is located in the southwest of China, in the core area of the economic belt in the upper reaches of the Yangtze River, surrounded by the Yangtze River and the Jialing River.
Explanation:
<span>well transportation is onne because there are trains that use magentic levation
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