Study Guide Flashcards
(22 cards)
Energy Pyramid
An energy pyramid is a graphical model of energy flow in a community.
Food Chain
A food chain is a hierarchical series of organisms each dependent on the next as a source of food.
Food Web
A food web is a system of interlocking and interdependent food chains.
Producer
A producer is an organism, either a green plant or bacterium, which is part of the first level of a food chain.
Consumer
A consumer is an organism that feeds on plants or other animals for energy.
Biome
A biome is a large community of plants and animals that occupies a distinct region.
Ecology
An ecology is the scientific study of the processes influencing the distribution and abundance of organisms.
Nitrogen Cycle
A nitrogen cycle is a continuous series of natural processes by which nitrogen passes successively from air to soil to organisms.
Water Cycle
The water cycle is continuous process by which water is circulated throughout the earth and the atmosphere through evaporation, condensation, precipitation, and the transpiration of plants and animals.
Carbon Cycle
The cycle of carbon in the earth’s ecosystems in which carbon dioxide is fixed by photosynthetic organisms to form organic nutrients.
Biotic Factors
A factor created by a living thing or any living component within an environment.
Abiotic Factors
A nonliving condition or thing, as climate or habitat, that influences or affects an ecosystem and the organisms in it.
Predator
A predator is a person or an animal that hunts a smaller weaker person or animal.
Prey
Prey is an animal hunted for food.
Succession
Succession is the process of change in the species structure of an ecological community over time.
Levels of Organization
Levels of organization. There are five levels: cells, tissue, organs, organ systems, and organisms.
Lab Safety Rules
Report all accidents, injuries, and breakage of glass or equipment to instructor immediately.
Metric System
A system of measurement in which the basic units are the meter, the second, and the kilogram.
Dependent Variable
A dependent variable is the variable being tested in a scientific experiment.
Independent Variable
An independent variable is defines as the variable that is changed or controlled in a scientific experiment.
Constant Variable
As the name suggests, it is the variable that the scientist wants to remain the same.
Hypothesis
A hypothesis is an idea or explanation that you then test through study and experimentation.
