A particle having 9 protons, 9 neutrons, and 10 electrons, because ions are atoms that have lost or gained one electron
        
             
        
        
        
Answer:
it might be D.
Explanation:
I honestly am going off of what I can remember in school.
 
        
             
        
        
        
<span>Primeiro non rematar a súa pregunta , entón eu non sei como realmente te responder .
segundo para cambiar a súa pregunta usar o botón de editar , entón eu vou editar a miña resposta .
 Espero axudar !
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Peyer patches are lymphoid nodules located in the walls of the small intestine.
Peyer patches are also known as aggregated lymphoid nodules, they are organized in the form of follicles and are round or oval and their surface is free of the villi and depressions that are present throughout the intestinal wall.
Peyer patches mainly consist of B cells and play an important part in the immune system by monitoring intestinal bacterial populations and controlling the development of pathogenic bacteria in the intestines.
To learn more about B cells here 
brainly.com/question/13789521
#SPJ4
 
        
             
        
        
        
The following statement is false: MOST US STATES PROHIBIT THE IMPORTATION OF ANIMAL SPECIES LIKELY TO BECOME INVASIVE IF THEY ESCAPE INTO THE WILD.
Presently, most US states do not have any law, which prohibit people from bringing into the US animal species that are likely to become invasive.
Invasive plant and animals are a great source of problems in America. These species usually destroy habitats and native species, this usually throw the ecological communities out of balance. The government spend  as much as $120 billions every year to control these invasive species.