Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
14 Cards in this Set
- Front
- Back
|
Carrying Capacity |
The largest size that a population can reach in an ecosystem. |
|
|
population
|
A group of organisms of the same species that live in the same area.For example, a desert will have populations of different species of lizards and cactus plants.
|
|
|
population density
|
A measure of the number of organisms that live in a given area.The population density of a city may be given as the number of people living in a square kilometer.
|
|
|
population dynamics
|
The study of the changes in the number of individuals in a population and the factors that affect those changes.
|
|
|
population size
|
The number of individuals in a population at a given time
|
|
|
range
|
The large geographic area where a population lives
|
|
|
competitor
|
A species that is often compared to an opportunist species. How does it compare? Its life span is longer. It has fewer offspring.
|
|
|
emigration
|
In population studies, the movement of individuals out of an ecosystem
|
|
|
immigration
|
In population studies, the movement of an organism into a range. The range is inhabited by individuals of the same species
|
|
|
limiting factor
|
A factor or condition that stops the continuing growth of a population in an ecosystem.
|
|
|
opportunist
|
A species that is often compared to a competitor species. How does it compare? Its life span is shorter. It has large numbers of offspring
|
|
|
extinction
|
The disappearance of a species with no chance of its coming back
|
|
|
habitat
|
The natural environment in which a living thing gets all that it needs to live. A desert is a habitat. A coral reef and a freshwater lake are, too.
|
|
|
pollution
|
The giving off or the presence of harmful substances into the air, land, or water.
|
