Answer:
Nervous systems become clearly unique in their communication properties only at the tissue and organ level, where billions of cells can work together as an intricately organized interconnected circuit. It is through the organization of cells in these neural circuits that the brain supports the great diversity of animal behavior, up to and including human consciousness, cognition, and emotion.
Explanation:
Communication, the effective delivery of information, is essential for life at all scales and species. Nervous systems (by necessity) can adapt more specifically between biological tissues for the high speed and complexity of the information transmitted, and therefore, the properties of neural tissue and the principles of its circuit organization can illuminate the capabilities and limitations of biological communication. Here, we consider recent developments in tools to study neural circuits with special attention to defining neural cell types using input and output information flows, that is, how they communicate. Complementing the approaches that define cell types by virtue of the properties of the genetic promoter / enhancer, this communication-based approach to define cell types operably by the structure and function of linkages of input / output relationships (E / S), solves the difficulties associated with defining unique genetic characteristics. , leverages technology to observe and test the importance of precisely these I / O ratios in intact brains, and maps processes through which behavior can adapt during development, experience, and evolution.
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.
Learn more about Hydra here brainly.com/question/1808325
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Las especies invasoras son animales, plantas u otros organismos que se desarrollan fuera de su área de distribución natural, en hábitats que no le son propios o con una abundancia inusual, produciendo alteraciones en la riqueza y diversidad de los ecosistemas. Cuando son transportados e introducidos por el ser humano en lugares fuera de su área de distribución natural, consiguiendo establecerse y dispersarse en la nueva región se les denomina especies exóticas invasoras resultando normalmente muy dañinas
