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LIVING TOGETHER (CHAPTERS 9-12)

Across
The smaller part of a whole population
Number of individuals that die during a period of time
A group of organisms that can mate with each other and produce offspring that can reproduce
All the possible food chains i n an ecosystem
Control the number of individuals in a population
2 species of organisms living closely together
Organism that is harmed
Measurement of the number of individuals living in the same area
Number of individuals that leave an area over a period of time
Plant eaters
Occurring naturally in an ecosystem
Not enough space for animals to get the resources they need for survival
A group of individuals of the same species living together in the same place
Species are at risk of being endangered
Make their own food using energy from the sun
Down
Individuals having a different role in the group
Break down dead or waste materials
Introducing a new species into the environment
Species are gone forever
All the organisms and the non-living factors in an environment
Number of individuals that come into an area over a period of time
Meat eaters
An animal that catches, kills and eats another animal
Helpful to one species and harmful to the other
One member of a population
A variety of organisms in an ecosystem
Meat and plant eaters
Living things that affect a population
Non living things that affect a population
A victim that gets consumed by another animal