Chapter 1 ecology test

29 terms by tungngeon

Create a new folder

Advertisement Upgrade to remove ads

ecosystem

Living and nonliving things in an environment, together with their interactions

habitat

Place where an organism lives and that provide the things that needs

biotic factor

a living part of an ecosystem

abiotic factor

a nonliving part of an ecosystem

photosynthesis

process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches or other animal eats plant to obtain food.

species

a group of similar organisms that can mate with each other and produce fertile offsprin

population

Group of one species that live in the same area

community

populations of different species living in a defined area

ecology

the study of the relationship between organisms and their environment

population density

the number of individuals per unit area

estimate

An approximation of a number based on reasonable assumptions

birth rate

the number of births in a population in a certain amount of time

death rate

the number of deaths in a population in a certain amount of time

immigration

moving in to the population

emigration

leaving a population

limiting factor

an environmental factor that prevents a population from increasing

carrying capacity

largest number of individuals of a population that a environment can support

natural selection

the changes that make organism better suited to their environments.

adaptations

the behaviors and physical characteristics that allow organisms to live successfully in their environments

niche

how an organism makes a living (how survives in its environment)

competition

the struggle between organisms to survive in a habitat with limited resources

predation

interaction in which one organism kills and feeds on another organism

predator

the organism that does the killing

prey

an organism that is killed and eaten by another organism

symbiosis

a close relationship between two species that benefits at least one of the species

mutualism

a relationship between two species in which both species benefit

commensalism

symbiotic relationship in which one member of the association benefits and the other is neither helped nor harmed

parasitism

A relationship between two organisms of different species where one benefits and the other is harmed

host

the organism that a parasite or virus lives in or on

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set