# Write the formula for population growth without limits?

In a population without limits, there will be an increase in the population size. For that we will use the equation (dN/dt) = 1.0 N where N is the number of individuals in the population and (dN/dt) is the rate of change in the number of the population over time.

### What limits population growth in an ecosystem?

Population growth is limited in ecosystems because of lack of resources. If there were unlimited resources, a population would grow exponentially. For example, if a single bacterium were placed in a petri dish and was given unlimited resources, it would multiply to cover the entire world within several days. Unfortunately, resources are limited, so populations are too. I hope this helps.

### What limits the size of predator populations?

Various limiting factors can retard the growth of a predator population. The greatest limiting factor is generally the availability of prey. The predators depend on the prey population for sustenance, and if prey population dwindles, predator population does as well. Other factors can limit a population as well, such as the abudance of abiotic resources (water, etc) and territory.

### What limits bacterial growth?

The environment of the bacteria will limit their growth. There is competition from other bacteria, the amount of food, water and whatever else is in the area. Antibiotics affects them in different ways by slowing their growth or by actually killing them. Ask yourself, what limits the number of rabbits in the natural environment. The answer to that will be the same, except on a larger scale.