Living Things & the Environment
A single individual in an ecosystem
What is an organism?
Organisms that cannot produce their own food and must obtain their energy by feeding on other organisms
What is a consumer?
These organisms have the most available energy available and make up the first (base) level of the energy pyramid
The process by which liquid water changes to a gas
What is evaporation?
All the members of one species living in a particular area are referred to as
What is a population?
Moving into a population is called what (spelling)
What is Immigration?
Consumers that eat both plants and animals
What is an omnivore?
Energy moves in this direction in the pyramid
What is up?
The process of a gas changing to a liquid
What is condensation?
An environmental factor that causes the population to stop growing or decrease in size
What is a limiting factor?
When the birth rate and death rate are equal, the population is
This shows how energy and matter flow through an ecosystem in a single path
What is a food chain?
Is there a limit to how many levels there can be in a food web or pyramid?
What is no? (there is no limit)
Rain, snow, sleet, or hail can be defined as
What is precipitation?
This is the most realistic way to show how energy and matter cycle through an ecosystem. It consists of many overlapping food chains in an ecosystem
What is a food web?
The levels of ecosystem organization from smallest to largest
What is organism >> population >> community >> ecosystem?
Only this amount of energy at one level of a food web is available to the next level higher
What is 10%?
What is any animal that eats plants? (it can be either an herbivore or omnivore)
What is carbon dioxide?
This states that matter is neither created nor destroyed during any chemical or physical change
What is the Law of Conservation of Mass?
The formula for population density
A student says that an organism that is both a first-level consumer and second-level consumer is an omnivore. Is that student correct? Explain
What is yes? Because the organism eats both plants and other organisms, which is the definition of an omnivore
When an organism consumes food it obtains energy and matter used to carry out life activities. These activities produce ___________, which is released and lost to the environment, reducing the amount of energy available to the next level
What is heat?
What is an example of a human impact that affects the levels of carbon and oxygen in the air
What are burning gasoline / natural gas / plant fuels; clearing forests to create farmland; using wood for lumber or fuel
This states that when one form of energy is transformed to another, no energy is lost in the process
What is the Law of Conservation of Energy?