1. Organism response vocab

2. 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

3. 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.

4. 3. Biotic factor Bio- life, of living things
a living part of an ecosystem p.267
Example- hawks, ferrets, badgers and eagles, trees

5. 4. Abiotic factor a- not, without
a nonliving part of an ecosystem p.268
Examples- water, sunlight, oxygen (air), temperature (weather), soil, rocks, & mountains

6. 5. Organism
A living thing

7. all the members of one species in a particular area p. 269
6. Population
all the members of one species in a particular area p. 269
Example- prairie dogs

8. 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

9. 8. Community Com- with, together
all the different populations that live together in an area
p. 270
Example- hawks, ferrets, badgers, eagles

10. What differences do you see?

11. 9. Immigration Im- before, in
Moving into a population.
Birds immigrate to Mexico (south)

12. 10.Emigration Em- before, to go into, onto
Leaving a population.
Birds emigrated from Chicago (north)

13. 11. Limiting factors
an environmental factor that prevents a population from increasing p. 277
Examples- food, space, weather conditions

14. Organisms enter population
Birth
Immigration
Organisms enter population
Size of population is limited by food, space and climate
All populations in an area make a community
Population
Same species, same area
Carrying capacity of population is maximum number of organisms it can support
Population density is number of organisms in an area
Organisms leave population
Death
Emigration

15. 12. Producer Pro- in favor of, forward
An organism that can make its own food.
autotroph

16. 13. Consumer
An organism that obtains energy by feeding on other organisms.
hetrotroph

17. 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

18. 15. Food chain
The series of events in which one organism eats another, resulting in a flow of energy among the organisms involved.

19. 16. Food web
The pattern of overlapping food chains in an ecosystem.

20. 17. Energy pyramid- diagram that shows the energy flow in a community
4th level- least energy
3rd level consumers
2nd level consumers
1st level consumers- herbivores
Most energy
Sun = photosynthesis
producers

21. Ability to do work or cause change
18. Energy
Ability to do work or cause change

22. Anything that has mass and occupies space
19. Matter
Anything that has mass and occupies space

23. 20. Biomass Bio- life, of living things
The living or formerly living material in an ecosystem.

24. 21. Stimulus
a change in an organism’s surroundings that causes the organism to respond p. 124 – temperature change= cold outside

25. 22. Response
an actions or change in behavior that occurs as a result of a stimulus p. 125

26. 23. Internal stimuli In- in, into
a change from within an organism that causes the organism to respond p. 124
Examples-hunger, thirst, hormones

27. 24. External stimuli Ex- out
a change in an organism’s surrounding that causes the organism to react. P.124
Examples- temperature, light, sound

28. 25. tropism The growth response of a plant toward (+) or away
(-)from a stimulus
Respond to touch- positive

29. Positive tropisms Positive tropism- plant grows toward stimulus
Vines coiling = touch
Grow toward light (phototropism) = light
Roots grow downward (geotropism) = gravity

30. 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

31. 26. hormone Chemical that effects growth and development
Fruit, flowers, shedding leaves

32. 27. Phototropism Photo- light
Plant response to light
All the sunflowers are facing the same way- towards the sun

33. 28. Geotropism geo- Geo- land, earth, ground, soil
Plant response to gravity

35. 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.

36. 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.

37. Cellular respiration- equation
Cells use the sugar and oxygen to make carbon dioxide and water

38. 30. Photosynthesis Photo- light
The process by which plants and some other organisms capture light energy and use it to make food from carbon dioxide and water.

39. Photosynthesis- chemical equation
sun
Makes sugar and oxygen

40. The cycles work together!

41. 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 continues
Air = 78% nitrogen