Which taxonomic category is made up of several classes? kingdom phylum order genus

Many state and local authorities are making laws regarding recreation on lakes, rivers, and oceans to reduce water pollution. why would lawmakers need to consult with scientists before making these laws? a) to make scientists feel important b) so that the laws reduce pollution by a sufficient amount c) so that parks and lakefront facilities will still make large profits d) so that the public will believe that the laws are important to follow

What evidence is there that convection occurs in earth’s troposphere?

Researchers want to use edna to look for an invasive species in the water which of the steps would be likely do last