Test Flashcards
(24 cards)
Biotic
Living organisms
Abiotic
A non-living part
Dependent Variable
Variable depends on another
Independent Variable
Variable that does not depend on another
Controlled Variable/Constant
Something you keep the same
10% Rule
Each level in an ecosystem only gives 10% of its energy to the levels above it
Greenhouse gas
Trap heat and make the planet warmer
Predator
An animal that naturally preys on others
Prey
An animal that is caught and killed by another for food
Predator-Prey Cycle
Based on a feeding relationship between two species
Mechanical defence
A body part or appendage serves a role in defence
Physical defence
Physical appearance that helps protect the animal
Chemical defence
Use of a chemical agent in defence
Behavioral defence
A behavior or action that helps the animal survive
Mimicry
The action or art of imitating someone or something
Competitive Exclusion Principle
Two species cannot coexist which compete for the same limited resource
Symbiosis
A mutually beneficial relationship between different people or groups
Mutualism
Interaction between two or more species where each species has a net benefit
Commensalism
Two organisms in which one benefits and the other derives neither benefit nor harm
Parasitism
One organism, the parasite, lives on or inside another organism, the host, causing it some harm
Biodiversity
The variety and variability of life on Earth. It can be measured on various levels
Species richness
The number of species within a region
Relative abundance
The percent composition of an organism of a particular kind relative to the total number of organisms in a region
