How do I calculate Ph?

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi

What is the statement plant growth is affected by the color light

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