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What would have happened if humans had not developed a circulatory system?
Humans didn't develop a circulatory system. Early forms of circulatory systems developed in the first animals and organisms to roam the earth. As these species evolved through speciation and genetic variation, new species came to exist that also had circulatory systems. Over time, the systems became more complex and efficient (compare the cardiopulmonary circulatory system of the human compared to the circulation of a fish). Therefore, without circulatory systems there would be no humans nor would there be life as we know it
Which animal phylum was the first to have a circulatory system?
The first animal phylum to have a circulatory system was the Annelida phylum, specifically the earthworm. Annelids have a closed circulatory system composed of blood vessels that transport nutrients and oxygen throughout the body.
Who was the first person to explain the circulatory system?
William Harvey
Who first studied about the circulatory system in man?
Mr Bobadev
Where was the plantation system first developed?
The plantation system was first developed by Portuguese explorers in West Africa.
Who developed the first widely accepted system of biological classification He classified organisms into two groups?
Carolus Linnaeus developed the first widely accepted system of biological classification. He classified organisms into two groups - plants and animals - based on their physical characteristics.
Who first found out about circulatory system?
W. H . Harway , and Malpighi .
In which year the first operating ayatem was developed?
The first operating system was developed in the 1950s.
What is the first use of circulatory system?
To move blood around the body, to and from the heart.
Who first proposed that humans have a closed circulatory system?
i believe it was william harvey
What part of the circulatory system is big as your first and is found in your chest cavity?
the heart
How do nutrients pass from the digestive system to the circulatory system?
They go first to the liver via the hepatic portal vein.
