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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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∙ 13y ago
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How is the body form of a hydra limtied by its lack of a circulatory system?
The purpose of a circulatory system is to distribute nutrients and oxygen to every cell in the body. As hydras lack a circulatory system such distribution must be accomplished by diffusion along, which is a very slow process and inadequate for anything of any size. So the body form of a hydra is limited in size due to a lack of a circulatory system.
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 is the circulatory system in the monkeys body?
closed circulatory system (double circulatory system)
What color is the blood of a hydra?
This is a trick question. Because hydras are only two cell layers thick, they do not have a true circulatory system. The inner cell layer absorbs materials directly from their gastrovascular cavity. So a hydra doesn't have blood!
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
Open circulatory system to lymphatics to closed circulatory system is to blood circulatory system?
no
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.
What system of the human body is made of blood?
Well,circulatory system is made up of BLOOD and heart.
