Least specialized cells to most specialized cells

What are the probable phenotypes of their offspring

What's the waste product of electrons and pyruvate combining in fermentation?  

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