B14 Organisms and their Environment Flashcards
What is a community?
A group of interdependent species
What is an ecosystem?
A system in which a community interacts with the abiotic parts of the environment
A sustainable ecosystem is maintained through _______ processes.
Natural
List 2 examples of limiting factors for a population:
- Access to food+water
- Availability of mates
List 3 examples of abiotic factors:
- Light intensity
- Soil pH/mineral content
- Temperature
What is mutualism?
The beneficial interactions between 2 organisms
What is parasitism?
When an organism exploits a host organism for survival
What is commensalism?
Symbiosis in which only one individual is benefitted, and the other is unaffected
True or false- sustainable populations live above their carrying capacity.
False- they live at or below their carrying capacity
What is the characteristic of a stable community?
A roughly constant population
List 4 things that animals may compete for:
-Food
-Water
-Territory
-Mates
What are the 3 types of adaptation?
-Structural
-Behavioural
-Functional
List 2 examples of structural adaptations:
-Thick layer of blubber
-Camouflage
Name an example of a behavioural adaptation:
Migration
What is a functional adaptation?
Adaptations that affect bodily processes
