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What are examples of open circulatory system?
Examples of organisms with open circulatory systems include arthropods, such as insects, spiders, and crustaceans. In these organisms, the circulatory system does not contain blood vessels; instead, the blood is pumped from the heart into body cavities where it directly bathes the tissues before returning to the heart.
Do earth worms have a closed circulatory system?
yes
Do earth worms have an open circulatory system?
I don't know. You tell me.
How is Saturn and Earth alike?
they are both in our solar system
What are example of circulatory system?
earth worm, grasshopper cockroach,snail and molluscians
What are interesting facts about the circulatory system?
All the veins in your body can stretch twice around the earth.
What is the of insects?
Insects are an important factor of the eco-system. Insects are known to eat debris and food that is left so the Earth is not over run with waste products.
Are earth years and mars years alike?
yes because the both are in the same solar system
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
Why do earth worms have a circulatory system?
An earthworm has a circulatory system consisting of four or more ventral blood vessels and one dorsal blood vessel that is also its heart. Most of the pumping of blood is performed by general muscular movements.
How is Venus's and earth alike?
earth and venus are alike because they are both on the inner planets
Are insects invading earth?
No, insects are natural to earth, they belong to the earth thus in no sense can insects invade earth.
