The order in which toxic nitrogen compounds are converted to less toxic nitrogen compounds in the nitrogen cycle is NH3 ----> NO2-   -----> NO3-
The nitrogen cycle refers to the movement of nitrogen in the ecosystem. The process of converting nitrogen into less toxic forms of nitrogen which is useful to plants is called nitrification.
During the process of nitrification, ammonia or ammonium is first converted to nitrates by the action of the microorganism called nitrosomonas. Nitrobacter converts nitrites to nitrates which are useful to plants.
Hence, the order in which toxic nitrogen compounds are converted to less toxic nitrogen compounds in the nitrogen cycle is NH3 ----> NO2-   -----> NO3-
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Answer:
a structure composed of several proteins that associate with the centromere region of a chromosome and that can bind to spindle microtubules
Explanation:
Kinetochores have  vvery important role in the cell division-mitosis.
During the metaphase of mitosis, spindle fibers attach to kinetochores. Some of the microtubules bind to kinetochore (kinetochore microtubules) while other don’t: they connect with the microtubules from the opposite pole, stabilizing the spindle.
 During the anaphase, kinetochore microtubules pull chromosomes toward poles, helping the sister chromatids separate from each other.  
 
        
             
        
        
        
<span>Yes, people besides athletes can benefit from skill-related fitness. Skill related fitness training can increase the coordination, reaction time, balance and agility of individuals at large, leading to an increased in ability to complete routine workplace tasks. Accident avoidance can be a benefit to cab drivers with increased reaction times. Wait staff can benefit from increased balance to skillfully carry large trays, Mechanics with good coordination are able to more quickly assemble complex components and in the even of a physical confrontation police officers can benefit from increased agility.</span>
        
             
        
        
        
Spermatogenesis is the process by which haploid spermatozoa develop from germ cells in the seminiferous tubules of the testis. This process starts with the mitotic division of the stem cells located close to the basement membrane of the tubules.
        
             
        
        
        
the meaning is that the cell is filled by choroplast.