Which of the following are the main components of an mRNA vaccine? mRNA and B-Cells that recognize the coronavirus
mRNA and antibodies that can inactivate the coronavirus
mRNA and spike proteins from the coronavirus
mRNA only

Abiologist counts the number of rabbits in a population each year and observes a decrease in population. since the coyote population has exploded, the biologist concludes that the coyote population has had a negative interaction with the rabbit population. which describes the biologist’s actions? a.) experimentationb.) inferencec.) observationd.) interacting