Which of the following lives in a prairie
ecosystem?
Which of the following is a biotic factor?
Which of the following lists the levels of an ecosystem in order from largest to smallest?
An organism gets food, water, shelter, and other things it needs to live, grow, and reproduce from its
The size of a population increases if the number of individuals added to the population is equal to the number of individuals leaving the population.
Three coyotes per square kilometer is an example of population density.
Sunlight can be a limiting factor for populations of plants.
For populations, water and food are examples of...
A population can decrease due to its deaths or...
If animals cannot find enough places to build nests, it is because ____________ is a limiting factor for the population.
When a snake kills a shrew, the shrew is the
A relationship in which two species live closely together and both benefit is
The role of an organism in its habitat is its
Adaptations are behaviors and social characteristics that allow organisms to live successfully in their environments.
A grackle and a sparrow try to eat from the same ear of corn in a field. This is an example of
An increase in a predator population will likely result in a decrease in the prey population.
Oxygen is a(n) ___________in the environment that is important for plants to make their own food.
A Tasmanian devil growling to protect its food source is called __________ communication.
The main way that populations increase in size is through the ___________ of offspring.