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A hydra is more efficient at obtaining food than a sponge due to its active predatory behavior and specialized structures. Hydras possess tentacles equipped with stinging cells that allow them to capture and immobilize prey, while sponges rely on passive filter feeding, drawing water through their porous bodies to extract nutrients. This active feeding strategy enables hydras to target and consume a wider variety of prey, enhancing their overall nutrient intake compared to the more limited and less efficient sponge feeding mechanism.
What else can I help you with?
What adaptations does a sponge have for obtaining food?
Sponges are filter feeders and use choanocytes to create a current for food particles to pass through its body.
What does hydra feed on?
Since Hydra is part of the group of cnidarians, it is a bit more complicated than a sponge. The way that hydra digest their food is through extracellular digestion. This means that hydra actually have a special gut cavity that traps and digests food instead of having a bunch of cells do it, like a sponge. This gut cavity only has one opening and during digestion, enzymes from the cell wall are released to aid in breaking down the food. Once digested, the food is engulfed by cells from the wall into tiny particles through a process called Phagocytosis.
How does a hydra remove waste or undigested food?
Hydra expels waste and undigested food through its mouth, which serves a dual purpose as both the entry point for food and the exit for waste. After capturing prey, the hydra digests it in its gastrovascular cavity, and any indigestible remnants are pushed back out through the same opening. This simple process is efficient for their small, tubular body structure.
How does a sponge gathers its food?
The sponge gathered food by filting the food.
How are oxygen and food circulated in hydra?
Diffusion
Does hydra captures its food with the help of pseudopodia?
No it is not true
How does a hydra remove undigested food?
A hydra removes undigested food the same ways it takes in food. A hydra takes in it's food through it's tentacles, so it removes food the same way because it's like a pipe stuck in the ground and there is only one way in and one way out.
What do hydra and volvox have in common?
They are both producers of food
What is the origin of the green pigment in hydra organisms?
The green pigment in hydra organisms, called "hydra-chlorophyll," is not produced by the hydra itself but is obtained from the algae that live symbiotically within its cells. This pigment allows for photosynthesis to occur within the hydra and provides energy for the organism.
How does a sponge get energy?
a sea sponge uses energy when mating and filtering food :)
What is spongs body made of?
A sponge's body is composed of a simple multicellular structure with specialized cells that work together to perform basic functions such as obtaining food, reproducing, and maintaining internal stability. The body of a sponge is supported by a porous skeleton made of a fibrous protein called spongin and/or mineral spicules.
What are the hairlike projections used for locomotion and obtaining food?
Cilia is the hairlike projections used for locomotion and obtaining food.
