Key Concepts I
Within a population, organisms are always being born and dying (1.2)
Within a population what is always happening?
Organisms in consumer populations get energy storage molecules from eating organisms in resource populations. (2.2)
How do consumer populations get energy storage molecules?
The size of a population can be affected by any population that is connected to it in a food web, even if they are not directly connected. (3.3)
Can the size of a population be affected by any population that it is connected to in a food web?
the process of creating offspring
What is reproduction?
the result of one cause leading to an effect that causes one or more other effects
What is indirect effect?
A system can be stable even as things are being added to and removed from it. If the amounts being added and the amounts being removed are not equal, then the system will change. (1.3)
Can a system be stable even as things are being added to and removed from it?
The more energy storage molecules available to a population, the more the organisms in that population can reproduce. (2.2)
The more energy storage molecules available to a population, the more organisms in that population can do what?
a group of the same type of organism living in the same area
What is a population?
the ability to make things move or change
What is energy?
when two or more populations use the same resource, such as the same food source
What is competition?
If the number of births and deaths in a given time are equal, then the population size will be stable (1.3)
How will a population size be stable?
The larger the resource population, the more energy storage molecules are available for its consumer populations (2.3)
The larger the resource population, what is more available for its consumer populations?
all the living and nonliving things interacting in a particular area
What is an ecosystem?
a molecule that organisms can use to release the energy that they need to survive
What is an energy storage molecule?
a model that shows what eats what in an ecosystem
If there are more births than deaths in a given time, then the size of the population will increase. If there are fewer births than deaths, then the size of the population will decrease. (1.3)
How could a population change?
The larger the consumer population, the more energy storage molecules it will need. Therefore, it will eat more, causing more deaths in the resource population. (2.4)
The larger the consumer population, what will it need more?
when something stays mostly the same over time
What is stability?
What is a consumer population?
living things, such as plants, animals, and bacteria
What are organisms?
Organisms need to release energy from energy storage molecules in order to reproduce. (2.2)
What do organisms need to release in order to reproduce?
Two populations can compete for the same resource population. A change to one of these populations affects the size of the other. (3.2)
Can two populations compete for the same resource population?
a small part that is meant to show what the whole is like
What is a sample?
a population that is eaten by organisms from another population
What is a resource population?
a group of atoms joined together in a particular way
What is a molecule?