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A group of organisms that are physically similar and can reproduce to produce fertile offspring
species
A relationship between two species. Both live together and both benefit
mutualism
All the members of one species living together in a particular area
population
The living parts of an ecosystem
Biotic factors
All the different populations that live together in one area
community
The nonliving parts of an ecosystem
Abiotic factors
When animals struggle with each other to survive in a habitat with limited food, shelter and water
competition
The conditions in an environment, like food or space, which prevent organism populations from increasing are…
Limiting factors
A relationship between two species. They live together and neither one is helped or harmed.
commensalism
The behaviors and physical characteristics of species that allow them to live successfully in their environment are…
adaptations
An organism’s role or job in the environment
niche
The largest population that an environment can support is its
Carrying capacity
If a population is very large or spread out, ecologists use what method to estimate population size?
sampling
A relationship between two species. One organism lives off and harms another organism
parasitism
All the nonliving and living things that interact in an area
ecosystem
Population density = number of organism /area Students counted 20 butterflies in a 2m by 2m section of a field. What is the population density of butterflies in that section
Area=2m x 2m A=4m2 Population Density=20 butterflies 4 m2 POPULATION DENSITY = 5 butterflies per m2
The entire field measured 40 m by 40m. Estimate the total population of butterflies in the entire field. (Use 5 butterflies per m2)
A= 40m x 40m A=160m2 1600m2 X 5 butterflies per m butterflies
Abiotic or Biotic? Sunlight
Abiotic
Abiotic or Biotic? ferns
biotic
Abiotic or Biotic? rabbits
biotic
Abiotic or Biotic? Your little brother/sister
Biotic
Abiotic or Biotic? rocks
abiotic
Abiotic or Biotic? soil
Abiotic
Abiotic or Biotic? cows
Biotic
Abiotic or Biotic? air
abiotic
Abiotic or Biotic? Television?
abiotic
Abiotic or Biotic? fungus
biotic
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Question 5f
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Final Answer
Final Question