What is biology and reproduction

The influenza virus cause the flu, but not other diseases. why?

Agene pool: a) is the collection of all the alleles found in a single species b) is the collection of all the alleles found in a single population c) is the collection of all the chromosomes found in a single population d) is the collection of genes in a species that allow the individuals to swim

Moving down the ramp from 6 meters to