Crossing over is a very important event in prophase i of meiosis! what happens during crossing over and what is the significance?

What is the 77 element on the periodtic table

Which enzymes break down carbohydrates?

The is an estimate of the fewest number of organisms a population needs to avoid extinction. this measurement will most if the number of offspring each female in the population produces increases. if the population's this measurement will most likely increase. 1 population density, minimum viable population, carrying capacity 2 decrease, be unaffected, increase 3 death rate increase, dead rate decrease