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CYCLES OF NATURE
Cycles of nature
20
Science
7th Grade
10/25/2010

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Cards

Term
Abiotic Factors
Definition
Non living features of an environment
Term
Adaptations
Definition
Changes an organism undergoes to survive
Term
Biotic factors
Definition
Living features in an environment
Term
Carrying Capacity
Definition
The largest number that can live in an ecosystem
Term
Food Chain
Definition
A direct flow of energy by feeding relationship
Term
Food Web
Definition
Buffet of feeding relationships in a community
Term
Learned Traits
Definition

Behaviors learned after birth

(walking, speech etc....)

Term
Photosynthesis
Definition
A plant's process of making food and releasing oxygen
Term
Symbiotic Relationship
Definition
Close relationships between species can be beneficial or harmful
Term
Tide
Definition
Daily rise and fall in sea level caused for the most part, by interaction of gravity in the Earth-Moon system.
Term
Erosion
Definition
The physcial movement of weathered material, as by water, wind, and ice.
Term
Weathering
Definition
The wearing down of rock and soil by chemical and physical processes.
Term
Diversity
Definition

Variety among species

 (plants and animals)

Term
Interdependence
Definition
Existence or survival depends on the relationship with other members of the community.
Term
Community
Definition
All the plants and animals that live in the same area and interact with one another.
Term
Population
Definition
All the plants or animals of a particular species present in one place.
Term
Niche
Definition
The role an organism has within its natural environment that determines its relationship with other organisms and insures its survival
Term
Deposition
Definition
The accumulation of natural materials by a gradual process
Term
Chemosynthesis
Definition
Production of energy rich nutrients made by micro-organisms using chemicals from chemical reactions to make food.  (Deep in the ocean where there is no sunlight.)
Term
Limiting Factor
Definition
Controls growth, living space and temperature
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