What is the difference between a coarse knob and a fine adjustment knob on a microscope

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?

Number and variety of living organisms includes genetic, species, and ecological types

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