When a new viral infection appears in a population, scientists usually try to develop a vaccine against the virus. which substances would most likely be contained in the new vaccine? a. live bacteria that ingest virusesb. white blood cells from an infected individualc. weakened viruses associated with the infectiond. a variety of microbes that will attack the virus

The us council on environmental quality, the world wildlife fund of the united states, the ecological society of america, the smithsonian institution, and the international union for the conservation of nature have proposed four principles of wildlife conservation. which of the following does not apply to wildlife conservation? a) continuous monitoring, analysis, and assessment b) ecosystem maintenance that includes wildlife c) a plan encompassing entire communities of organisms and all renewable resources d) a continued interest in harvesting populations for sport