Key Concepts
If the number of births and deaths in a given time are equal, then the population size will be__.
What is stable?
A small part that is meant to show what the whole is like.
What is a sample?
For a(n) __ to be healthy, it has to have lots of different kinds of plants and animals.
What is a ecosystem?
Ecosystem Ecology refers to how __ and __ come into an environment and move around.
What is energy and nutrients?
A starting substance that is part of a chemical reaction.
What is a reactant?
If there are more births than deaths, then the size population will__.
What is increase?
When something stays mostly the same over time; this is an example of a population staying the same over time.
What is stability?
All living things depend on__.
What are other living things?
The __ is usually the primary the source of energy for most ecosystems.
What is the sun?
What do atoms do during chemical reactions?
What is rearrange?
If there are fewer births than deaths, then the size of the population will __.
What is decrease?
All the living and nonliving things interacting in a particular area.
What is an ecosystem?
What is the largest ecosystem in the world?
What is the sea?
Autotrophs like plants can convert __ energy into __.
What is the sun's energy and chemical energy?
Matter cannot be created or destroyed.
What is the Law of Conservation of Matter?
A __ can be stable even as things are being added to and removed from it.
What is a system?
A group of the same type of organisms living in the same area.
What is a population?
The best way to wipe out a species is to:
How do you remove them from their natural environment?
Herbivores are referred to as __ consumers.
What are primary consumers?
What is an element that has some of both the properties of metals and nonmetals?
What is a metalloid?
If the amount being added and being removed are not equal, then the system will __.
What is change?
The total weight of living things in an ecosystem.
What is biomass?
What percent of the world is covered by water?
What is 71%?
What percent of energy do organisms hold on to when they ingest?
What is 10%?
What kind of chemical reaction stores energy away?
What is a endothermic reaction?