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the hydras and sponges do not have a circulatory system.because, the water in which they live brings all the food and oxygen when it enters their bodies. It also carries away all the waste products and carbon dioxide when it moves out.

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Q: What is hydra circulatory system?
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Related questions

How is the body form of a hydra limtied by its lack of a circulatory system?

The body form of a hydra is limited by its lack of a circulatory system because nutrients and gases can only be exchanged through diffusion across the body surface. This restricts the size and complexity of the hydra, preventing it from growing too large or developing specialized structures that require efficient transport systems.


How is the hydra able to survive without a circulatory or transport system?

most of the cells are in contact with a watery environment


What color is the blood of a hydra?

The blood of a hydra is typically colorless or pale yellow due to the lack of red blood cells found in vertebrates. Instead, hydra rely on a simple circulatory system to distribute nutrients and oxygen throughout their bodies.


The absorption and circulation of materials in a hydra are most similar to the absorption and circulation of materials in a?

sponge. Both hydra and sponges are simple aquatic animals that rely on diffusion for nutrient absorption and lack a circulatory system. Nutrients are taken in through their body walls and transported within the body through simple diffusion rather than a dedicated circulatory system.


Does a hydra have a heart?

No, hydra do not have a centralized circulatory system like animals with a heart. Instead, they have a simple network of canals where nutrients and gases diffuse directly to cells.


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.


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

Amphibians have closed circulatory system Closed


What are the body parts of the arteries?

The circulatory system


What are the different of circulatory system?

open circulatory systemclosed circulatory system.


What kind of digestive system does a hydra have?

i think a hydra has a incomplete digestive system called the-gastrovascular system


What system is the heart apart of?

The cadiovascular system, sometimes called the circulatory system when it includes the lymphatic system.