Answer;
-Northbound APIs
Communication between SDN controllers and routers is governed by Northbound APIs.
Explanation;
-The northbound application programming interface (API) on an SDN controller enables applications and orchestration systems to program the network and request services from it.
-Northbound APIs can enable network functions like path computation, loop avoidance, routing and security. The northbound APIs can also used to facilitate innovation and enable efficient orchestration and automation of the network to align with the needs of different applications via SDN network programmability.
The right option is; B) are not composed of cells.
The single, MOST important reason why viruses are classified as non-living is that they are not composed of cells. The cell is the basic unit of structure and function in organisms. All living organisms are composed of one or more cells (according to the cell theory) and viruses do not have cells. Therefore, many scientists classify viruses as non-living.
Viruses are non-cellular microscopic infectious organism that are composed of two main parts; nucleic acid (DNA or RNA) and a protein coat that protects the nucleic acid. Viruses require a living cell (host) to reproduce and usually cause disease in the host organism.
Decomposers are organisms that occupy the last link in a trophic web. They feed on dead organic matter, returning nutrients to the soil. The decomposers in this trophic web are Mooshroom.
<h3>What is a decomposer in a trophic web?</h3>
Decomposers are organisms that occupy the last link in a trophic web. These are the species that feed on dead organic matter.
Decomposers use the energy and matter found in dead tissues to grow and reproduce. They turn this matter into inorganic matter by remineralizing it. This is how it goes back in the soil nutrient cycles.
Although several species occupy the decomposers link, some common examples are earthworms, bacteria, and fungi.
In the exposed example, we can identify the following trophic levels,
- Producers ⇒ Bear sedge and Bilberry
- Herbivores ⇒ brown lemming, actic fox
- Carnivore ⇒ acrtic fox, weasel
- Carnivore ⇒ Owl
- Decomposer ⇒ Mushroom.
The decomposer is the mushroom, that feed on dead organic matter of all the other organisms.
You can learn more about decomposers at
brainly.com/question/13526806
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