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Ecology Vocabulary 1-28
Quiz
32
Science
7th Grade
04/08/2013

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Term
Organism
Definition
An individual living thing made up of cells that grow, reproduce and respond to the environment.
Term
Species
Definition
A group of living things that are closely related and are capable of mating with one another to produce fertile offspring. (can reproduce and breed)
Term
Population
Definition
A group of organisms that live in the same area at the same time.
Term
Life cycle
Definition
The series of changes in the life of an organism including reproduction and death.
Term
Life span
Definition
The length of time for which a person or animal lives or a thing functions.
Term
Metamorphosis
Definition
The process of transformation from an immature form to an adult form in two or more distinct stages.
Term
Nymphs
Definition
Immature insects
Term
*Abiotic* =Abiotic Factor=
Definition
*A nonliving thing* =A nonliving thing in an ecoystem=

Physical rather than biological, (Habitat or weather)
Term
*Biotic* =Biotic Factor=
Definition
*A living thing* =A living thing in an ecosystem=

(Plants, animals,fungi, protists)
Term
Habitat
Definition
The natural home or environment in which a living thing gets all it needs to live.
Term
Niche
Definition
*The role of a living thing in its habitat*

ex.a plant is a food producer, whereas an insect both consumes food as well as provides food for other consumers.
Term
Biome
Definition
A region on Earth that has a particular climate and type of plants and animals living there.

Ex. The African Savannah is part of a grassland biome
Term
Community
Definition
All of the interacting populations living with one another in an area.

Ex. populations of lions, gazelles and wildebeests living together
Term
Ecosystem
Definition
A system of interacting living organisms and nonliving factors in a specified area.

*smaller than a biome and includes only organisms(plants and animals) and their local environment (water, soil).*
Term
Consumer
Definition
An organism that generally obtains food by feeding other organisms.
Term
Carrying capacity
Definition
The number of people, other living organisms, or crops that a region can support without environmental degradation.
Term
Instar
Definition
A phase of development of an insect where it takes place in 5 stages, after the nymph stage.

*5 stages*
Term
Individual
Definition
A single separate organism distinguished from others of the same kind.
Term
Limited factor
Definition
The condition which inhibits the expansion of a species.
Term
molting
Definition
Shedding the exoskeleton in order to grow.
Term
predator
Definition
An animal that hunts other animals and eats them.
Term
Prey
Definition
An animal that other animals hunt and eat.
Term
Competition
Definition
The struggle between two or more living things that depend on the same limited resource.
Term
Cooperation
Definition
A term used to describe an interaction two or more living things in which they are said to work together.
Term
Symbiosis
Definition
The interaction between individuals from two different species that live closely together.
Term
mutualism
Definition
A symbiotic relationship in which each of the organisms benefits.
Term
commensalism
Definition
An association between two organisms in which one benefits and the other derives neither benefit nor harm.
Term
Parasitism
Definition
the relationship between two different kinds of organisms in which one receives benefits from the other by causing damage to it.
Term
producer
Definition
The beginning of the food chain that serve consumers.
Term
*Clutch
Definition
cluster of eggs
Term
*Incomplete metamorphosis
Definition
Gradual maturing of insects
Term
*Proboscis
Definition
Tube-like beak for sucking liquids (in mouth)
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