A vector disease is transmitted by things such as mosquiotos , monkeys, people, microorganisims, without killing off the species that transmits it ,it will spread faster. Other transmitted diseases you can take precaution, say an airborn illness you can wear masks isolate the sick person. water disease don't drink the water. did I explain well enough hope I helped
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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The truth about intercellular signals are nucleus which opens up on an ion-linked channel.
Intercellular signals mediates and ionizes radiation which is being induced by stander effects.
Inorder to get to know more about intercellular signal we have to identify the transducers, receptors and the ligands.
Answer:
Eutrophication
Explanation:
Eutrophication is the process where organic matter and nutrients build up in a body of water and increase plant growth.
