Ecology I
The level of biological organization that includes both biotic and abiotic factors
What is an ecosystem?
An organism that is able to produce its own food from inorganic substances
What is a producer / autotroph?
The assortment, or variety, of living things in an ecosystem.
What is biodiversity?
In Japan, the death rate is higher than the birth rate. The size of the population is ___.
What is decreasing?
Type of population growth represented by an S-shaped curve
What is logistic growth?
A species' specific role in a community
What is a niche?
A direct series of organisms linked by their feeding relationships
What is a food chain?
The maximum population size that can be supported by the available resources of a region is known as __.
What is carrying capacity?
A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce.
What is a species?
An organism that has an unusually large effect on an ecosystem
What is a keystone species?
This word describes individuals joining a population.
What is immigration?
Type of population growth represented by a J-shaped curve
What is exponential growth?
Environmental factors that limit the size of populations in an environment (food, water, space, shelter, competition for resources, predators, disease)
What is a limiting factor?
Interactions between organisms that limit the population because of limited food, water, territory or other factors.
What is competition?
Exponential population growth occurs due to this condition.
What is abundant resources?