A collection of individuals of the same species living in the same area who can breed with one another.

Study of the interactions of organisms with one another and with their physical environment.

In a food chain, herbivores are known as

In an ecosystem, the organisms that typically hunt and kill other animals for food and are rarely hunting and killed themselves are known as

Cougars are predators that often eat weakened or diseased animals. This is a description of the ______________ of courgars.

Tropical rainforests have the worlds' greatest _____________ because they have the greatest number of different species of organisms living there.

The relationship between snakes and mice could best be described as

The ______________ consists of evaporation, precipitation, transpiration, runoff, and infiltration.

Wind, water, and sunlight are all examples of