Organism response vocab 1. Ecosystem eco-environment or habitat all the living and nonliving things...
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![Page 1: Organism response vocab 1. Ecosystem eco-environment or habitat all the living and nonliving things that interact in an area p.266 Example- hawks, ferrets,](https://reader036.fdocuments.net/reader036/viewer/2022070407/56649e115503460f94afe09a/html5/thumbnails/1.jpg)
Organism response vocab
![Page 2: Organism response vocab 1. Ecosystem eco-environment or habitat all the living and nonliving things that interact in an area p.266 Example- hawks, ferrets,](https://reader036.fdocuments.net/reader036/viewer/2022070407/56649e115503460f94afe09a/html5/thumbnails/2.jpg)
1. Ecosystem eco-environment or habitat
• all the living and nonliving things that interact in an area p.266
• Example- hawks, ferrets, badgers, snakes, eagles, soil, rocks, temperature, water
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2. Habitat
• The place where an organism lives and that provides the things it needs to survive.
• Needs: food, water, shelter, and other things it needs to live, grow, and reproduce from its surroundings.
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3. Biotic factor Bio- life, of living things
• a living part of an ecosystem p.267
• Example- hawks, ferrets, badgers and eagles, trees
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4. Abiotic factor a- not, without
• a nonliving part of an ecosystem p.268
• Examples- water, sunlight, oxygen (air), temperature (weather), soil, rocks, & mountains
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5. Organism
•A living thing
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6. Population
• all the members of one species in a particular area p. 269
• Example- prairie dogs
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7. Society
• A closely related population of animals that work together for
the benefit of the whole group.
• Example: bee hive. Beavers, ant hill, school
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8. Community Com- with, together
• all the different populations that live together in an area
• p. 270• Example-
hawks, ferrets, badgers, eagles
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What differences do you see?
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9. Immigration Im- before, in
• Moving into a population.
• Birds immigrate to Mexico (south)
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10.Emigration Em- before, to go into, onto
• Leaving a population.
• Birds emigrated from Chicago (north)
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11. Limiting factors
• an environmental factor that prevents a population from increasing p. 277
• Examples-
food, space, weather conditions
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PopulationSame species, same area
Organisms enter
population
Organisms leave
population
Birth Immigration
Death Emigration
All populations in an area make
a community
Population density is number of organisms in an area
Size of population is limited by food, space and climate
Carrying capacity of population is maximum number of organisms it can support
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12. Producer Pro- in favor of, forward
• An organism
that can make its own food.
• autotroph
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13. Consumer
• An organism that obtains energy by feeding on other organisms.
• hetrotroph
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14. Decomposer
• Organism that breaks down the large molecules from waste and the remains of dead organisms into small molecules and returns important materials to the soil and water
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15. Food chain
• The series of events in which one organism eats another, resulting in a flow of energy among the organisms involved.
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16. Food web
• The pattern of overlapping food chains in an ecosystem.
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17. Energy pyramid- diagram that shows the energy flow in a
community
Most energy
Sun = photosynthesis
1st level consumers- herbivores
2nd level consumers
3rd level consumers
4th level- least energy
producers
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18. Energy
• Ability to do work or cause change
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19. Matter
• Anything that has mass and occupies space
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20. BiomassBio- life, of living things
• The living or formerly living material in an ecosystem.
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21. Stimulus
• a change in an organism’s surroundings that causes the organism to respond p. 124 – temperature change= cold outside
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22. Response
• an actions or change in behavior that occurs as a result of a stimulus p. 125
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23. Internal stimuli In- in, into
• a change from within an organism that causes the organism to respond p. 124
• Examples-hunger, thirst, hormones
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24. External stimuli Ex- out
• a change in an organism’s surrounding that causes the organism to react. P.124
• Examples- temperature, light, sound
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25. tropism
• The growth response of a plant toward (+) or away
(-)from a stimulus
• Respond to touch- positive
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Positive tropisms
• Positive tropism- plant grows toward stimulus– Vines coiling = touch– Grow toward light (phototropism) = light– Roots grow downward (geotropism) = gravity
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Negative tropisms
Negative tropisms- plant grows away from stimulus
– stems grow upward against gravity
Negative to gravity, but positive to light
Roots are positive to gravity, negative to light
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26. hormone
• Chemical that effects growth and development
• Fruit, flowers, shedding leaves
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27. PhototropismPhoto- light
• Plant response to light
• All the sunflowers are facing the same way- towards the sun
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28. Geotropismgeo- Geo- land, earth, ground,
soil • Plant response
to gravity
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29. respiration
• Producers take in carbon dioxide gas during photosynthesis.
• They use the carbon from the carbon dioxide to produce sugars and starches that are stored in their bodies.
• A consumer then eats plants.• It obtains energy from these
molecules by breaking them down into simpler molecules.
• Carbon dioxide gas is released as a waste product of respiration.
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Cellular respiration• The process by
which cells break down simple food molecules to release the energy they contain.
• Cellular respiration occurs in the
mitochondria of an organism’s cells.
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Cellular respiration- equation
Cells use the sugar and oxygen to make carbon dioxide and water
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30. PhotosynthesisPhoto- light
• The process by which plants and some other organisms capture light energy and use it to make food from carbon dioxide and water.
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Photosynthesis- chemical equation
Makes sugar and oxygen
sun
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The cycles work together!
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Nitrogen cycle- bacteria break down waste- releasing nitrogen into the
air- the bunny eats the plant, eventually dies and returns to the
soil and the cycle continuesAir = 78% nitrogen