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The hydra has a single opening digestive tract so what goes in has to come out the same way. Worms have two openings to their digestive tract so things can just go straight through without any stopping. This is an interesting - if rather standard - exam question. Looked at from an evolutionary point of view it is clear that the gut structure present in the earthworm offers far more potential than the hydra's simple 'gutbucket'and has, (unlike the latter) been exploited along the length of the evolutionary path starting from the point after hydra. The questions that follow from this include how did the gut structure evolve, what competitive advantage does it offer and, most important of all, why. Jon P Baker, Sheffield, England

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What kind of digestive system does a hydra have?

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


How does hydra maintain homeostasis?

they can do it partly by using their tentacles to capture food and enter it into the digestive system which provides it with nutrients.


Which organism has specialized organs for the excretion of metabolic wastes yeast ameba earthworm or hydra?

The answer is: an earthworm trust me. i answered a question JUST like that in my homework and got it right


What is the differences between a human digestive process and a hydra?

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Where are the digestive enzymes of Hydra produced?

The digestive enzymes in Hydra are produced in their cells, specifically in the gastrodermis, which lines the inner cavity of the body column. These enzymes help break down food particles that are ingested by Hydra for absorption and nutrient acquisition.


What is an open digestive system?

An open digestive system is one where there is an entrance "mouth" in one end of the organism and an "exit" or anus of some sort in the other end of the organism. (think of worms or people). A closed digestive system is in something like a hydra or anemone where there is just one cavity and one opening that acts as both mouth and anus.


Explain respiration in hydra?

Well hydra has no specialized organs for respiration but exchange of gases is carried ou' by entire bodyy surface. Oxygen and carbon dioxide diffuse from the body digestive system. Thus an efficient exchange is carried ou by enteron..


How do the buds of an organisums such as hydra compare to the parent?

the new bud simply detaches from the parent body


What is true for both incomplete and complete digestive systems?

An incomplete digestive system (found in certain lower invertebrates like Cnidarinas, i.e. hydra, marine jellyfish, and Platyhelminthes, i.e. flatworms) is where a single opening to a pouch-like cavity serves as both mouth and anus. A complete digestive system (all insects have them) means that food processing occurs within a tube-like enclosure, the alimentary canal, running lengthwise through the body from mouth to anus.


Which of the following creatures has no blood but respires 1 fish 2 earthworm 3 hydra 4 cockroach?

All animals respire, but some simple animals, such as cnidarians (anemones, jellyfish, and relatives), and sponges don't have blood.


How do buds of a organism such as hydra compare to the parent?

The hydra makes offspring by forming buds that break off and grow into new hydras like the parent.


How do the buds of an organisms such as hydra compare to parent?

The hydra makes offspring by forming buds that break off and grow into new hydras like the parent.