Shared Flashcard Set

Details

Biology Test
N/A
59
Biology
9th Grade
10/04/2011

Additional Biology Flashcards

 


 

Cards

Term
Primary Succession
Definition
No other species live there, no remnants of former communities. Lichen often start a new environment. Path to this community is often unstable. Some communities may be affected so often they could never recover.
Term
Secondary Succession.
Definition
Some of the previous environment remains. Happens much faster than Primary Succession because new species can thrive off the ones that survived.
Term
Autotroph
Definition
Collects Energy from sunlight or
Term
Chemoautotroph
Definition
Gets energy from chemicals.
Term
Photoautotroph
Definition
gets energy from sun.
Term
Producers
Definition
Makes energy available to all other organisms.
Term
Hemoautotrophs
Definition
typicaly use sulfur.
Term
Heterotrophs
Definition
Get energy by consuming other organisms.
Term
Herbivores
Definition
Eat only plants.
Term
Carnivores
Definition
Eats only meat.
Term
Omnivores
Definition
eat plants and animals.
Term
Extriavores.
Definition
eat parts of dead matter.
Term
Decomposers
Definition
Break down dead organisms by realising enzymes. (Mushrooms, some Bactria)
Term
Not all detritavores are ______
Definition
Decomposers.
Term
Tropic Level
Definition
Each step in a model of an ecosystem.
Term
Food Chains
Definition
Shows how energy flows through an ecosystem.
Term
4 Levels..
Definition
This is how far Trophic levels will go.
Term
Food Webs
Definition
Complex interactions between food chains and pathways.
Term
Energy Pyramids
Definition
Shows relative amount of energy, biomass or # of organisms at each level. These Things decrease each level.
Term
Limiting Factor
Definition
Abotic factors that limit the numbers, reproduction, or distribution of organisms. May limit one species and enable another.
Term
Range of Tolerance
Definition
Ability of Biotic Factors to survive when subjected to abotic factors.
Term
Characteristics of Life
Definition
Made of 1+ cells.
Displays organization.
Grows and Develops.
Adaptions over time.
Reproduces it's own kind.
Responds to Stimuli.
Requires energy.
Maintains Homeostasis.
Term
Biodiversity
Definition
variety of life in an area that is determined by the number of different species that live there
Term
Extinction
Definition
When the last member of a species dies.
Term
Genetic Diversity
Definition
Variety of Genes in a population.
Term
Species Diversity
Definition
Number of different species and relative abundance of each in a community.
Term
Ecosystem Diversity
Definition
Variety of Ecosystems present in the Biosphere.
Term
Science
Definition
An organized way of gathering and analyzing evidence about the natural world.
Term
Science
Definition
An organized way of gathering and analyzing evidence about the natural world.
Term
Science
Definition
An organized way of gathering and analyzing evidence about the natural world.
Term
Observation
Definition
The act of noticing and describing events or processes in a careful, orderly way.
Term
Inference
Definition
A logical interpretation based on what scientists already know.
Term
Hypothesis
Definition
A scientific explanation for a set of observations.
Term
Controlled Experiment
Definition
An experiment where only one variable is changed and all others stay constant.
Term
Independent Variable
Definition
The manipulated variable, one that is deliberately changed.
Term
Dependent Variable
Definition
The variable that is observed and that changes in response to the independent variable.
Term
Control Group
Definition
Exposed to the same conditions as the experimental group except for one independent variable.
Term
Theory
Definition
A well tested explanation that ties a bunch of hypothesis together.
Term
Bias
Definition
Particular preference or point of view that is personal not scientific.
Term
What measuring system do scientists use when collecting data and preforming experiments?
Definition
The metric system.
Term
Biology
Definition
Study of Life
Term
Biosphere
Definition
The whole world
Term
Ecology
Definition
The scientific study of interactions among organisms and between organisms in their physical environment.
Term
Species
Definition
A group of similar organisms that can breed and produce fertile offspring.
Term
Population
Definition
A group of individuals that belong to the same species and live in the same area.
Term
Community
Definition
An assemblage of different populations that live together in a defined area.
Term
Ecosystem
Definition
All the organisms that live in a place, together in their physical environment.
Term
Biome
Definition
A group of ecosystems that share similar climates and typical organisms.
Term
Bio-geochemical
Definition
Closed loops through which elements pass from one organism to another (And among parts of the biosphere.)
Term
Niche
Definition
Role that organisms play in a habitat
Term
Predation
Definition
Interaction in which one organism captures and feeds on another.
Term
Herbivory
Definition
Interaction in which one animal feeds on producers. (such as plants)
Term
Symbiosis
Definition
Two species live relatively close together.
Term
Mutualism
Definition
Both species benefit
Term
Parasitism
Definition
One species benefits, the other gets harmed.
Term
Commensalism
Definition
One species benefits, while the other is not harmed.
Term
Pioneer Species
Definition
First Species to populate an area during succession.
Term
Tundra Biome
Definition
Freezing, Artic, no trees, permafrost.
Term
Boreal Biome
Definition
Coniferous forests.
Supporting users have an ad free experience!