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Population and Ecosystems Vocabulary 1-24
Study Guide for Quiz
24
Science
7th Grade
04/15/2015

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Term
Ecology
Definition
The scientific study of how organisms interact with their environment and all the other organisms that live in that environment.
Term
Ecosystem
Definition
A particular environment and all the living things and nonliving things that are supported by it and interact in it.
Term
Biotic factor
Definition
A living thing in an ecosystem
Term
Abiotic factor
Definition
A nonliving part of an ecosystem
Term
Species
Definition
A group of living things that are so closely related that they can breed with one another and produce offspring that can breed as well.
Term
Individual
Definition
Only one living thing.
Term
Population
Definition
A group of organisms that live in the same area.
Term
Consumers
Definition
A organism that gets its food(energy)by eating, or consuming, other organisms.
Term
Community
Definition
Populations that live and interact with each other in an area.
Term
Producer
Definition
An organism that captures energy and stores it in food as chemical energy.
Term
Food chain
Definition
Describes the food relationships of the animals living in an ecosystem
Term
Food web
Definition
Shows how food and energy passes from one organism to another in an ecosystem.
Term
Predator
Definition
An animal that hunts and eats others
Term
Organism
Definition
An individual living thing that can grow and reproduce
Term
Niche
Definition
The role of a living thing in its habitat
Term
Habitat
Definition
The natural environment in which a living thing gets what it needs to live.
Term
Prey
Definition
An animal that other animals hunt and eat.
Term
Nymph
Definition
Immature insects
Term
Instar
Definition
Five stages of a newly hatched insect.
Term
Molting
Definition
Shedding of the exoskeleton
Term
Clutch
Definition
A cluster of eggs
Term
Incomplete metamorphosis
Definition
Gradual maturing of eggs
Term
Exoskeleton
Definition
Tough outer coating of an insect
Term
Proboscis
Definition
A tube-like beak for sucking liquids (in mouth)
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