Because of the nitrogen cycle all of the above answers are correct
The answer is; D
This is referred to as co-evolution. It involves the reciprocal evolution of 2 species. This kind of evolution can be seen in mutualism (like the choices described above), and also predator-prey, host-parasite relationships. The term co-evolution was coined by Paul R. Ehrlich and Peter H. Raven in 1964.
The medulla oblongata<span> helps regulate breathing, heart and blood vessel </span>function<span>, digestion, sneezing, and swallowing. </span>
Because mostly some microorganism may be very small and harmful that can affect humans or animals just by the experience of the microorganism.
B is the most effective and feasible, and it prevents the initial introdution of the species
