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Humans are primates. Long before any species of primate evolved a replacement for the mammalian circulatory system, they would probably no longer be considered mammals. Actually, virtually all vertebrates possess a similar circulatory system. I think some invertebrates may get along without blood.
What else can I help you with?
What has cells without a nucleas?
Humans.....Blood Cells Do Not Have A Nucleas.
What is a custom of the Aztec?
To sacrifice humans for their blood. They believed without giving blood to their Gods, the Sun wouldn't rise and the rain wouldn't fall.
What would happen to the human body without the heart?
Without a heart pumping blood throughout the body, a person would die.
Why do vampire bats rarley attack humans?
Vampire bats typically avoid humans because their primary food source is usually livestock, such as cattle. They have evolved to specialize in feeding on the blood of animals like cows, pigs, and horses. Vampire bats prefer to feed on these larger mammals due to the ease of accessing their blood without being detected or disturbed.
What would happen if an abnormality in the blood circulation made the blood go to the heart without passing through the lungs?
You would die because blood wouldn't collect oxygen
What happens when humans are born without coronary circulation?
Coronary circulation is blood flow to the muscles of the heart. Without a working heart, the baby would die.
Why is the respiratory system important to the humans body?
It helps you breath and pump blood around your body. Without it you wouldn't be alive!
Is there any MN blood group in humans?
Yes. You have MN system of blood group in humans.
What would you expect to happen to the blood sugar levels if they go without food for a long time?
They would lower
What are blood types of humans examples of?
Blood type in humans is an example of multiple alleles.
Do bedbugs serve any positive purpose to society?
This may be a bad answer: Nobody knows, but Bedbugs are classified as parasites, and have evolved to feed on human blood (VAMPIRES!) Also, they prefer to live in warm areas with slight amounts of light, the same needs as humans. Possibly, the answer is that their purpose is to live a changed life, as they have evolved to feed on humans.
What will happen to the heat energy in the blood as it flows through the blood vessels in your feet?
The heat energy will become extrelemy hot but we humans can't feel how hot it is we think of it as a 'cool' foot Hope I helped
