Deck One Flashcards
(25 cards)
Energy pyramid
A model that shows the available amount of energy in each trophic layer in an echosystem
Food web
A model that shows many different feeding relationships among living things in a given area
Decomposer
Organisms which carry out the process of decomposition by breaking down dead or decaying organisms
Food chain
A model that shows one set of feeding relationships among living things
Coniferous
Plants that produce reproductive organs called cones
Consumer
An organism that eats other living things to get energy;an organism that does not produces own food( related work: consume)
Biome
A major ecological community such as a grassland, tropical rain forest, or dessert
Deciduous forest
A forest containing trees that loose their leaves each year
Ecology
The branch of biology dealing with the relations and interactions between organisms and their environment, including other organisms.
Cycle
The movement of a substance through different reservoirs or stages
Nitrogen cycle
A process in which nitrogen in the atmosphere enters the soil and becomes part of living organisms then eventually returns to the atmosphere.
Biotic factors
All of the parts of an echosystem
Water cycle
The continual movement between the land, ocean, and the air through predictable physical processes
Abiotic factor
All the non living parts of an echosystem
Producer
An organism that makes its own food;and organism that does not consume other plants or animals
Carbon cycle
A natural cycle in which carbon compounds mainly carbon dioxide, are incorporated into living tissue through photosynthesis and returned to the atmosphere by respiration, decay of dead organisms, and the burning of fossil fuels
Predator
An animal that hunts and eats other animal
Prey
An animal that is hunted and eaten by another animal
Succession
The sequence of communities that develop in an area
Levels of organization
Species population community ecosystem biome biosphere
Metric system
a system of measurement based on multiples of 10
Dependent variable
a factor, trait, or condition that is affected when another factor, trait or condition is changed in a scientific experiment
Independent variable
in an experiment that is a fair test; the variable that a scientist changes
Hypothesis
a testable explanation for a problem or phenomena
