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59 Cards in this Set
- Front
- Back
Metric System of Measurement |
The ratios between units of measurements are multiplied of 10. |
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Technology |
Application of scientific research to society's needs and problems |
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Control Group |
Part of the experiment that's the standard against which results are compared. |
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Scientific Theory |
A theory that explains scientific observation. |
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Tundra Biome |
Surrounds the north and south poles; treeless land with long summer days and short periods of winter. |
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Limiting Factor |
Any biotic or abiotic factor that restricts the existence, numbers, reproduction, or distribution of organisms. |
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Photic Zone |
Portion of the marine biome that's shallow enough for sunlight to penetrate. |
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Primary Succesion |
New substrate devoid of vegetation and other organisms usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited. |
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Pioneer Community |
Variety of plants, animals, and fungi that first colonized a barren habitat. |
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Deciduous |
Drop all their leaves each fall or when water source is scare |
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Taiga |
Forms an almost continuous belt of coniferous, just south of the tundra |
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Climax Community |
A stable, mature community that undergoes little to no change. |
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Range of Tolerance |
Ability of an organism to withstand fluctuations in biotic and abiotic environment factors. |
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Aphotic Zone |
Deep water that never receives sunlight. |
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Biodiversity |
Variety of life in an are, usually measured as the number of species that live in an area. |
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Temperate Deciduous Forest |
Forest that are dominated by trees that lose their leaves each year. |
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Terrestrial |
Living or growing on the land |
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Habitat Fragmentation |
Habitat loss results in the division of large, continuous habitat into smaller, more isolated. |
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Habitat Degradation |
Loss of quality of the resources and necessities of a population or ecosystem. |
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Exotic Species |
Plant or species introduced into an are where they don't occur normally. |
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Evolution |
Gradual change in a species through adaptation over time. |
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Homeostasis |
Characteristics of life because it's a process that occurs in all living things. |
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Growth |
Results in an increase in the amount of living material and the formation of new structure. |
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Development |
All changed that take place during the life of an organism, |
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Reproduction |
Production of an offspring |
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Ethics |
Refers to the moral principles and values held by humans. |
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Hypothesis |
AN explanation for a question or a problem that can be tested. |
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Experiment |
Investigation that tests a hypothesis by the process of collecting info under controlled conditions. |
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Quantitative Research |
Any kind of data that can be measured numerically. |
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Independent Variable |
The only factor that affects the outcome of the experiment. |
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Transpiration |
When a plant absorbs water in its roots. |
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Commercialism |
One species is neither harmed nor benefited. |
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Mutulism |
Both species benefit |
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Parasitism |
One species benefits at the expense of another. |
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Competition |
Relationship among living things for resources |
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Niche |
All strategies and adaptations a species uses in the environment. |
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Ecosystem |
Made up of interacting population in a biological community and the community's abiotic factors. |
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Predator |
An organism that preys upon another. |
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Habitat |
The place where n organism lives out its life. |
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Herbivore |
Animal that consumes vegetation |
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Consumer |
Organism that generally obtains food by feeding on another organism. |
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Decomposer |
Feeds on dead or decaying organims |
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Aquatic |
Pertaining to water |
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Secondary Succesion |
Sequence of changes that take place after an existing community is severely disturbed. |
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Carrying Capacity |
Number of organisms of one species that an environment can support indefinalty |
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Rapid Life History Strategy |
Small body size, mature rapidly, reproduce early, have short life span |
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Slow Life History Stragey |
Large species that live in more stable environments usually have slow life-history patterns. |
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Exponential Growth |
The population grows faster as it increases in size. |
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Habitat Loss |
No longer able to support the species, resulting int he displacement or destruction of its biodiversity. |
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Reintroduction Programs |
Release organisms into an area where the species once lived. |
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Nucleus of an Atom |
Region found in the center of the atom, makes up the majority of an atom's mass. |
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Electron Cloud |
Electrons when they go around the nucleus of an atom. |
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Protien |
Provides structure for tissues and organs and helps carry out cell metabolism,large complex polymer essentials to call life composed of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. |
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Amino Acid |
Basic building blocks of protein molecules. |
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pH |
Measure of how acidic or basic a solution is. |
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Isotope |
Atoms of the same element that have different numbers of neutrons in the nucleus. |
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Acid |
Any substance that forms hydrogen ions (H+) in water. |
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Base |
Any substance that forms hydroxide ions (OH-) in water. |
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Carbonhydrate |
Organic compound used by cells to store and release; composed of carbons, hydrogen and oxygen. |