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Unit 2 choice board

Population Growth
Across
Interaction among organisms that vie for same recourses in an ecosystem
An interaction in which one organism kills another for food
An organism that is killed and eaten by another organism
Alter the environment and decreases the amount of organisms in a population, no matter the size of the population.
Positive growth
Type of growth where the population grows faster and faster
measure of mass per volume
# of individuals present
When a population reaches a certain size, there wont be enough ________? (food, water, shelter)
The birth rate minus the death rate
Down
Change in population over a given period of time
All members of a species living in the same place at the same time
make or become smaller or fewer in size, amount, intensity, or degree.
Unpredictable- dandelion seeds
the action or process of distributing things or people over a wide area.
The number of organisms that are dying in a population
characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed
Factors which restrict the size of population
the number or quantity of people or things that can be conveyed or held by a vehicle or container
The number of births in a population
Not common in desert due to competition for water