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Environmental Systems and Biology
N/A
45
Science
9th Grade
12/14/2010

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Term
Environment
Definition
The interaction between abiotic and biotic factor.
Term
Abiotic Factors
Definition
Non-living physical and chemical factors which affect the ability of organisms to survive and reproduce.
Term
Biotic Factor
Definition
Living things or their materials that directly or indirectly affect an organism in its environment.
Term
PH Sensor
Definition
To find how basic or acidic a substance is.
Term
Parasitism
Definition
Interaction between two organisms in which the parasite benefits and the host is harmed. 
Term
Parasite
Definition
An organism that depends on a host and feeds off of it
Term
Host 
Definition
Something that carries a parasite.
Term
Bacteria
Definition
A single cell organism.
Term
Herbivory
Definition
When animals eat plants.
Term
Disease
Definition
An interrupt, cessation or disorder of a body, system, or organ structure or function.
Term
Symbiosis
Definition

An interaction where the host and the parasite benefit from es

each other.

Term
Competition 
Definition
When two or more parties strive for a common goal that cannot be shared.
Term
Predation
Definition
A biological interaction where a predator feeds on its prey.
Term
Predator
Definition
An organism that is hunting.
Term
Prey
Definition
The organism that is attacked.
Term
Ecosystems
Definition
A system formed by the interaction of a community of organisms with their environment.
Term
System
Definition
A set of interacting or interdependent entities forming an integrated whole.
Term
Photosynthesis
Definition

Carbon Dioxide + Water produces oxygen gas + Glucose.

opposite of repiration

Term
Autotroph
Definition
An organism capable of synthesizing its own food from inorganic substances, using light or chemical energy. 
Term
Heterotroph
Definition
An organism which is not capable of manufacturing food by inorganic sources, hence, must consume organic susbstrates, like plants or animals, for growth and development.
Term
Trophic Levels
Definition
An class of organisms that occupy the same position in a food chain, as primary consumers, secondary consumers, and tertiary consumers. 
Term
Food Chain
Definition
A series of organisms interrelated in their feeding habits, the smallest one being fed on by a larger one, which in turn feeds a still larger one, etc. 
Term
Carnivore 
Definition
Meat eater.
Term
Herbivore
Definition
Plant eater.
Term
Scavenger
Definition
An animal, such as a bird or insect, that feeds on dead or decaying matter. 
Term
Producer
Definition
An organism, such as a plant, that is able to produce its own food from in organic substances. 
Term
Primary Consumer
Definition
(in a food chain) an animal that feeds on plants; a herbivore. 
Term
Secondary Consumer
Definition
(in a food chain) a carnivore that feeds only upon herbivores.
Term
Tertiary Consumer
Definition
A carnivore at the top most level of a food chain that feeds on other carnivores; an animal that only feeds upon a secondary consumer.
Term
Top Predator
Definition
An animal that is a predator but has no predator of their own; are on top of the food chain.
Term
Atmosphere
Definition
A gaseous mass or envelope surrounding a celestial body, especially the one surrounding the Earth, and retained by the celestial body's gravitational field. 
Term
Biosphere
Definition
 The part of the Earth were living things exist. 
Term

Hydrosphere

 

Definition
The aqueous vapor of the atmosphere; broadly: the aqueous envelope of the earth including bodies of water and aqueous vapor in the atmosphere. 
Term
Lithosphere
Definition
The rigid outer layer of the Earth's surface; is composed of the continental crust, the oceanic crust, and the uppermost mantel, all floating on the semi-molten rock of the mantel
Term
Mantle
Definition

The portion of the earth about, 1800 miles thick, between the crust and the core. 

Term
Albedo Effect
Definition
A measure of how much of the Sun's energy is reflected off an object back out to space compared to how much is trapped in the Earth's atmosphere. Snow, ice, clouds, other white stuff reflect it off. 
Term
Evapotranspiration
Definition
The process of transferring moisture from the earth to the atmosphere by evaporation of water and transpiration from plants. 
Term
Precipitation  
Definition
The quantity of water falling to earth at a specific place within a specified period of time.
Term
Decomposers
Definition
Organisms that decompose and break down dead or decaying organisms and release it back to the soil.
Term
[image]
Definition

A community of organisms where there are many interrelated food chains.

(Food Web)

Term
[image]
Definition

90/10 rule

(Energy Pyramid)

Term
[image]
Definition

The total weight of organisms at each level of a food chain.

(Biomass pyramid)

Term
[image]
Definition

The relative numbers of organic material at each level.

(Numbers Pyramid)

Term
[image]
Definition

When one organism on the food chain is unusually large.

(Inverted Pyramid)

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