In a hydra, digestion is completed intracellularly.
Hence option (a) is correct.
Small, freshwater organisms of the phylum Cnidaria and class Hydrozoa are grouped under the genus Hydra. They are indigenous to temperate and tropical climates.
The digestion takes place intracellularly in Hydra.
Because of their ability to regenerate and the fact that they don't appear to age or experience old age, hydra have drawn the attention of biologists.
Like most other cnidarians, hydras have a pretty straightforward digestive system.
They have a two-way digestive system, which differs from mammals in that food and waste enter and exit through the same aperture. A "blind gut" is the name for this configuration.
The center of the hydra's body is occupied by its digestive tract.
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Pretty sure its a tsunami, but heck what do I know?
Answer:
I believe it would either be A or D hope that helps sorry not much help
There are two possibilities It would be 2 and 4 because for 2 if that fish ate another fish then the ecosystem would be damaged and it would be 4 because without that fish eating the other fish the population would go crazy
