The answer is; B
Mutations change the order of nucleotide and therefore affects codons that code for proteins. A different protein is thus produced from the wild type hence creating variations. Genetic shuffling in sexual reproduction, also called gene recombination occurs during meiosis and also when different organisms exchange genetic material such as in bacteria.
Answer:
to prevent the virus to have a big effect on the body of humans so the cells can fight against it
size hence streams are little and rivers are bigger than streams because a stream connects between two or more rivers
mark brainliest please :)
B is the answer if not B then C
