Help please. i will mark branniest if correct

Why does bubbling occur when vinegar mixed with baking soda

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

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.