Vocab-Word
when something becomes different over time
change
Energy is the ability to _____ things move or change.
make
Within a population organisms are ______ being born and dying.
The ______ 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.
size
when two or more populations use the same resource, such as the same food source
competition
a population that eats organisms from another population
consumer
An __________ is all the living and nonliving things interacting in a particular area.
ecosystem
If the number of births and deaths in a given time are ______, then the population size will be
stable.
equal
Two populations can compete for the same resource population. A _____ to one of these populations affects the size of the other.
change
the ecological process in which an animal (or an organism) kills and feeds on another animal (or an organism).
predation
a model that shows what eats what in an ecosystem
food web
A population is a ______ of the same type of species living in the same area.
group
If there are ________ births than deaths, then the size of the population will decrease.
fewer
The __________ the consumer population, the more energy storage molecules it will need.
larger
characterized by both species benefiting from the association
mutualism
when something stays mostly the same over time
stability
An ecologist is a scientist who studies the ___________ of organisms with each other and their environment.
interactions
Organisms in consumer populations get energy storage molecules from _______ organisms in
resource populations.
eating
The larger the resource population , the more energy storage molecules are ________ for its consumer populations.
available
one in which one organism lives off of another organism, the host, harming it and possibly causing death
parasitic
a small part that is meant to show what the whole is like
sample
Producers are the base of the ecosystem; they are usually plants but can be any organism that can make their own food, like some _________.
bacteria
The larger the consumer population, the _____ energy storage molecules it will need.
more
The more energy storage molecules available to a ___________, the more the organisms in that population can reproduce.
population.
an association between two organisms in which one benefits and the other derives neither benefit nor harm.
commensalism