Pages 6-10
A living thing that obtains food, water, shelter, and other essentials in order to live, grow, and reproduce.
An organism
The act of moving into a population.
Immigration
The role of an organism in its habitat.
Niche
A process where the strong survive, utilizing birth to adapt.
Natural selection
Pick an area and count the number of animals in an area, and then multiply by the number of areas! (Determining population size)
Sampling
The living factors of a habitat.
Biotic factors
The number of deaths in a population in a certain amount of time.
Death rate
The struggle between organisms to survive as they attempt to use the same limited resources.
Competition
One organism living on or inside another organism and harming it.
Parasitism
Count 'em! (Determining population size)
Direct observation
A process in which plants create their own food.
Photosynthesis
An approximation of a number based on reasonable assumptions.
Estimate
An interaction in which one organism kills another for food.
Predation
A relationship where both species benefit.
Mutualism
Capture the animal, mark the animal, release the animal, then recapture. Create a chart. (determining population size
Mark-and-recapture
The different populations that live together in an area
Community
An environmental factor that causes a population to decrease.
Limiting factor
The characteristics of an animal that help them survive in their habitat.
Adaptations
A close relationship between two species that benefits at least one species.
Symbiosis
*food and water
*space
*weather
*the condition of their habitat
What do all of these have in common?
They're all limiting factors.
The study of how living things interact with each other and with their environment.
Ecology
The act of moving out of a population
Emigration
A relationship in which one species benefits and the other species is neither helped nor harmed.
Commensalism
The organism that benefits from parasitism.
Parasite
Yes