Write a function `country_change()` that takes in a country's name, # two (numeric) years, and the `life_exp` dataframe as parameters. # it should return the phrase: # "between year1 and year2, the life expectancy in country went direction by # some_years years". # make sure to properly indictate the direction as "up" or "down"

What does a sperm cell plus egg cell equal in total?

If the polar bear were taken out of the food chain what would happen to the seal population the seal population would diminish the seal population would grow dramatically the seal population would stay the same the seal population would decrease slightly

Ihave a singular monitor that is a tv for my computer. recently, i took apart my computer and put it back together. when i put in the hdmi cord and booted the computer to see if it worked, the computer turned on fine but the screen was blue with "hdmi no signal." i've tried everything that doesn't require buying spare parts, any answer is appreciated!