Which of the following statements is false? once an invasive species is well-established, it’s virtually impossible to eradicate it most u. s. states prohibit the importation of animal species likely to become invasive if they escape into the wild few new plant varieties are evaluated for their potential to become invasive prior to importation into the u. s. internet sales and pet fairs make it difficult to control the trade in exotic species species listed as “endangered” are banned from international trade

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.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.