Environmental Biology Flashcards
What is the environment?
A complex of physical, chemical and biotic factors that act upon an organism or ecological community and ultimately determines its survival and form.
What is a biome?
A large geographical area which is classified based on predominant vegetation adapted to that particular environment.
What is a food chain?
A linear sequence of organisms through which energy and nutrients pass from one trophic level to the next in an ecosystem, starting with the primary producer.
What is an individual?
Any organism or living thing, having its own characteristics in evolution, behaviour and physiological with relations to the environmental factors.
Population definition.
A group of individuals of the same species living in the same area, who can interbreed and produce fertile offspring.
What are food webs?
Interconnected feeding relationships in an ecosystem.
Ecological pyramids definition and synonym.
Eltonian Pyramids . Diagramatic representations depicting the number of organisms, biomass and productivity at each trophic level.
Definition of a wetland according to the Ramsar Convention of 1971.
An area of marsh, fen, peatland or water which is natural or artificial, permanent or temporary with static or flowing water that can be fresh, brackish or salt, which includes areas of marine water at which the depth does not exceed 6m at low tide.
Ecosystems within a biome are adapted to slight changes in :
Topography, soil condition and climate.
The type of biome in a region depends on:
Climate and Geography.
Why learn env bio?
1.understand how biotic and abiotic factors are linked and interact with each other.
2. Recognize organizational levels of the env
3. learn about major processes of an ecosystem.
4. understand how human activities are altering ecological systems.
5. recognize different components of terrestrial and aquatic ecology.
