Chapter 4 Vocabulary Crossword

Scientific study of interactions among organisms and their environment.
Group of similar organisms that can breed and produce fertile offspring.
Group of individuals that belong to the same species and live in the same area
All different populations that live together in an area
Biological community of interacting organisms and their physical environment.
All living organisms that inhabit an environment
All life forms on Earth.
Non-living parts of an organism's habitat.
Place where an organism lives.
Any necessity of life such as water nutrients light food or space.
Number of individuals in a population.
Number of individuals per unit Sq.
Percentage of the population (or number of people of each sex )at each age level in a population
Graph of the number of males and females with different age groups of a population.
Number of males per hundred females in the population.
Graph showing the the number of survivors in different age groups for a particular species.
Moving into a population.
Leaving a population.
Movement from one place to another.
Occurs when a fixed percentage of new people is added to a population each year resulting in ever-increasing population.
An environmental factor that prevents a population from freezing.
Largest number of individuals of a population that an environment can support.
Growth pattern in which a population's growth rate slows or stops following a period of exponential growth.
Dependent factor-are limiting.
A limiting factor whose influence changes with population density; includes competition predation, and disease.
A limiting factor whose influence is not affected by population density; includes catastrophic events.
The growth rate of a population under ideal conditions.