Organisms and P...

A red-tailed hawk hunts, kills and eats a squirrel. What role does the squirrel play in this interaction? 

Which of these best describes population density? 

Which are density-dependent factors that limit population size?
 I. Disease
 II. Space
 III. Earthquake

The population size that an environment can sustain is called the 

Adventure world and Fun Park are 30 miles apart. Both amusement parks have thriving pigeon populations. People drop food throughout both parks, providing the main food source for the pigeons.
Adventure world has the more exciting rides and Fun Park is forced to close when it is unable to bring in enough people to cover operating costs. Upon closing, wildlife from the surrounding areas begins to take over.
In terms of evolutionary change, what is likely to happen to the two pigeon populations in the future?

All the following interaction are mutualism, except

All of the following are characteristics of r-strategists except

Using lady beetles to prey upon aphids and mealy bugs is an example of 

Various relationships exist between the species of a community. Identify the relationship between the species of a community described.
Barnacles attach to a whale's skin. The moving water carries food particles to the barnacles while the whale is neither harmed nor helped.

Various relationships exist between the species of a community. Identify the relationship between the species of a community described.
Flowers provide insects with nectar and pollen for food and insects help flowers to reproduce