The maximum population size an ecosystem can support over time.
Carrying Capacity
The hare, a prey animal, fits on which level of the energy pyramid?
Primary Consumer
Which of the following is an example of a limiting factor?
A: Excess Food
B: Introduction of a New Competitor
C: Unlimited Space
B: Introduction of a New Competitor
The study of how organisms react with other organisms and their environment.
Ecology
If the birth rate exceeds the death rate, what will happen to the population size?
The population will grow!
On the graph below, which animal is the predator?
Lynx
Limiting factor
A relationship between two organisms where one organism benefits and the other organism is neither helped nor harmed.
Ex. Giraffe providing a squirrel shade from the sun
Commensalism
When did the death rate exceed the birth rate on the graph below?
A: Between years 4 and 6
B: Between years 8 and 9
C: Between years 14 and 15
B: Between years 8 and 9
Which color on the graph below represents the predator?
Blue
What is something humans can do when a population size grows too much?
Issue hunting licenses, introduce a predator, anything that increases a limiting factor.
A relationship between two organisms that affect both positively.
ex) bee and a flower
Mutualism
The following graph shows the population size of rats in a city. What is the carrying capacity size on the graph below?
1.5 million rats
Which color on the graph below represents the prey?
Red
For a few years, there was an excess of primary producers due to excess rainfall. What would happen to the population of deer?
The deer population would grow
List the levels of ecology in order from smallest to largest.
Individual
Population
Community
Ecosystem
Biosphere
The following graph shows the population size of rats in a city. During what 25 year time period was there an excess of resources leading to exponential population growth?
1825-1850
Why does the predator population follow the prey population in the graph below?
The predator population follows the prey population because the predator population size depends on the prey population size.
Deer are affected by a terrible disease wiping out half of the population. What would likely happen to the population size of the grass, the deer's food source?
The grass population size would grow due to less predation from the deer.
Which of the following is the smallest unit of organization?
Biosphere, community, ecosystem, population
Population