Population Ecology Quickcheck 1

Biotic Factors are ___________.

• non-living parts of an ecosystem

• things that were once alive, but now are dead

• living parts of an ecosystem

• not important parts of an ecosystem

The number of individuals per unit area.

• distribution

• density

• carrying capacity

• none of the above

The way in which individuals of a population are spread out is called

• population density

• population distribution

• survivorship

• logistic curve

If the number of births in a population is the same as the number of deaths in a population, what will happen to the growth of the population?

• it will increase

• it will stay the same

• it will decrease

• it will fluctuate

Last year in a habitat of elephants, there were more births than normal and there was more immigration of elephants into the area. How does this affect population size and density?

• Both population size and density will increase

• Both population size and density will decrease

• Both population size and density remain the same

• Population size decreases but density increases

What does the graph represent?

• Emigration

• Immigration

• Exponential Growth

• Logistic Growth

A biotic or abiotic resource in the environment that causes population size to decrease is a

• growth factor

• carrying capacity

• limiting factor

• limiting nutrient

Any factor(s) that controls/ limits the size of a population.

• Density dependent

• Density Independent

• Limiting Factors

• Environmental Resistance

If there is more food than usual in an ecosystem, then the population will mostly likely...

• Stay the same

• Increase

• Decrease