Why were some bacteria and viruses were radioactive at the end of the hershey chase experiment?

How can you keep track of variables in a science experiment?

Which part of cellular respiration must occur before any of the other steps can occur

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