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because their body have a direct contact with the environment

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12y ago

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Why do larger organisms need a circulatory system and amoeba do not?

We are eukaryote which means are cells are more advanced than there's. And since we have more cells than a amoeba. Our cells carry oxygen to the brain and other organs in the body. A amoeba dose not have a brain. So it doesn't need a circulatory system.


Why amoeba and paramecium don't have proper organ system?

Because paramecia and amoebae are single-celled animals, and in order to have organs you need to be multicellular (organs are made of cells). They have to make do with organelles, like the nucleus and mitochondria.


How does a vacuole in paramecium serve some of the same functions as a circulatory system in animals?

Long hippopotamus toenail vagina.


What system does the endocrine system relies on?

Circulatory system. (If it is a wrong answer, my apologies, wait for the proper answer)


How does a vacuole in paramecium serve come of the same functions as a circulatory system in animals?

It moves around within the Paramecium cell, distributing food, nutrients, and other needed materials to different parts of the cell.


Do mollusks have a closed circulatory system?

No, mollusks typically have an open circulatory system, where the blood flows around the body cavity and directly bathes the organs. This is in contrast to closed circulatory systems found in some other animals where the blood flows through vessels.


Does an amoeba have a heart?

No, an amoeba does not have a heart. Amoebas are single-celled organisms that do not possess a circulatory system like more complex organisms. They rely on diffusion to transport nutrients and gases within their cell membrane.


Does the circulatory system affect humans?

Yes. The circulatory system is how the human body makes sure that each cell receives the proper nutrients it needs and can expel the waste that it doesn't. A person with a malfunctioning circulatory system can wind up in pretty bad shape.


What is the circulatory system in the monkeys body?

closed circulatory system (double circulatory system)


How are the circulatory system and the circulatory system related?

They're both the circulatory system.


Three organs of the circulatory system?

The organs of the circulatory system include the heart, lungs, kidney, liver, and small intestines. The blood and blood vessels also play a large part in the proper function of the circulatory system.


Do amphibians have an open circulatory system or a closed circulatory system?

Amphibians have closed circulatory system Closed