A scientist wants to change the sequence of nitrogen bases in a DNA strand. Which of the following should the scientists do? 1.Add in more phosphates to the DNA
2. Change the order of nucleotides
3.change number of hydrogen bases
4. Remove some of the sugars

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