Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Biology Chapter 3
9th grade BJU Biology Chapter 3
| Term | Definition |
|---|---|
| biosphere | the realm of life on Earth; few kilometers into the atmosphere to few kilometers into the earth's crust |
| ecology | the study of interrelationships between organisms and their relation to their physical surroundings |
| biodiversity | the number of species ("species richness") in an area |
| biome | large area that have fairly consistent environment and is home to a set of organisms suited to it (both biotic and abiotic) |
| ecosystem | limited area (smaller than biome) in which living and nonliving things interact |
| habitat | smaller part of an ecosystem that an organism prefers (where they live) |
| niche | the role of an organism within its habitat (how they live) |
| abiotic factors | nonliving aspects of an ecosystem |
| biotic factors | the living part of the ecosystem |
| population | a group of organisms of the same species interacting in the same area |
| producer | (= autotrophs) plants and algae manufacture their own food by photosynthesis |
| consumer | (= heterotrophs) organisms that can't produce their own food, but instead consume the producers |
| competition | organisms try to use the same resource |
| detritus | waste products of plants and animals |
| decomposer | organisms that break down nutrients |
| food web | overlapping of the food chains of different animals |
| ecological pyramid | each trophic level represents a different type of organism in the food chain, and each depends on the level below it for energy |
| symbiosis | animals interacting with each other |
| parasitism | organisms that depend on a much larger animal, a host, for food (over time they weaken the host) |
| mutualism | a mutually beneficial relationship between several members of an ecological community |
| commensalism | one organism benefiting from another, but other neither benefit nor harmed |
| neutralism | shares neighborhood, but isn't directly affected |
| amensalism | one organism is injured while the other is unaffected |
Created by:
krisztamod
Popular Biology sets