Genes code for proteins, and a mutation can code for a different protein and change it. How do mutations affect natural selection and the process of evolution? Question options:
(A) by increasing gene transfer in an organism
(B) by decreasing variations in an organism
(C) by changing the environment
(D) by changing the fitness of an organism
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b 04545

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.