Term
| What is the carrying capacity of a population? |
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Definition
| This is the point at which the population size levels off because of limiting factors such as available food and water. |
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Term
| What is meant by abiotic? |
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Definition
| Non-living (never was living) |
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Term
| Where is the independent variable found on a graph? |
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Definition
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Term
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Definition
| Not to be confused with the control group. These are all the other variables in the experiment that must be kept the same so that these do not impact the results. |
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Term
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Definition
| The variable that is changed. It causes something to happen. Also called manipulated variable. |
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Term
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Definition
| The result in the experiment. Also called the responding variable. |
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Term
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Definition
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Term
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Definition
| The group that does not recieve the treatment or the independent variable. This is used for comparison. |
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Term
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Definition
| This is the explanation of the experiment. It refers back to the hypothesis as well as gives details about experimental error and provides reasoning about the meaning of the results. |
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Term
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Definition
| A testable explanation that uses the form: If (independent variable), then (dependent variable). |
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Term
| What does a j-shaped curve show on a population graph? |
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Definition
| This shows exponential growth of a population (rapid increase in population size). |
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Term
| What is an example of a producer? |
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Definition
| plants such as grass, trees, flowers, or photosynthetic algae |
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Term
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Definition
| A testable question in an experiment |
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Term
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Definition
| This is an organism that was hunted and eaten by another organism. |
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Term
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Definition
| This is the direct relationship two or more species have with each other. |
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Term
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Definition
| This is a type of symbiosis in which one organism is benefited and one is harmed. |
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Term
| What is the difference between a food web and a food chain? |
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Definition
| A food chain shows only one series of energy transfers as organisms eat but a food web shows all (or at least many) of the the energy transfers in the ecosystem. |
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Term
| What is a secondary consumer? |
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Definition
| This is an organism that hunts and eats another organism. |
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Term
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Definition
| These are organisms that go through the process of photosynthesis to make food from the energy of the sun. |
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Term
| What does an s-shaped curve show on a population graph? |
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Definition
| This shows an initial increase in population growth but then the growth of the population slows as it reaches the carrying capacity. |
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Term
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Definition
| These are organisms that eat other organisms to get energy |
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Term
| Put the levels of organization of life in order |
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Definition
| atom, molecule, organelle, cell, tissue, system, organism, population, community, ecosystem, biome, biosphere |
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Term
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Definition
| This is a type of symbiosis in which one organism is benefited and one is unaffected. |
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Term
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Definition
| This is a type of symbiosis in which both organisms benefit from their relationship. |
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Term
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Definition
| a particular living space and arrangement for a species in an ecosystem |
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Term
| If an organism dies is it biotic or abiotic? |
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Definition
| It is biotic because it was once living. (Abiotic means that it was never living.) |
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Term
| What is ecological succession? |
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Definition
the natural, gradual changes in the
types of species that live in an
area |
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Term
| What are pioneer species? |
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Definition
a group of
organisms, such as lichens, found in
the primary stage of succession and
that begin an area's soil-building
process. |
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Term
| What is primary succession? |
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Definition
| The establishment of a new community where none existed before |
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Term
| What is secondary succession? |
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Definition
| The reestablishment of a community following a disturbance such as a fire or a volcanic eruption |
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Term
| What is a climax community? |
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Definition
a stable
group of plants and animals that
is the end result of the
succession process |
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Term
| What is a keystone species? |
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Definition
a single species
that is not usually numerous in a
community but exerts strong control
on the structure of the community.
• If the population of a keystone species
declines it can have dramatic changes
on the other species in the community. |
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Term
| How does energy flow through ecosystems? |
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Definition
Begins with the sun...
Producer → Consumers
primary consumers (herbivores)
secondary consumers (carnivores)
tertiary consumers (omnivores) |
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Term
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Definition
“self –feeders”
Ex. Plants, some photosynthetic
bacteria & protists |
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Term
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Definition
“other–feeders”
Ex. All animals (herbivores,
carnivore/predators, omnivores,
scavengers, etc) |
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Term
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Definition
“detritus–feeders” aka detritivores = eats dead organic matter
Ex. Fungi, some bacteria |
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Term
| What is an energy pyramid? |
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Definition
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Term
| What does the 10% rule state? |
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Definition
| Only 10% of the available energy is transferred from one trophic level to the next. |
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