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Definition
| The full range of all conditions in which an organism live and how they use them. no two species can occupy the same niche. |
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Definition
| Two organisms try to use the same resource at the same place and time. |
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| Competitive Exclusion Principle |
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Definition
| No two species can occupy the same niche. |
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Definition
| Relationship in which two species live closely together. |
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Definition
The series of predictable change that occur over time.
Such as: Older inhabitants dying and new ones being born |
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Definition
occurs where no soil is or on bare rock.
(Lichen breaks rock) |
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Definition
| occurs after a disturbance, where the community is destroyed without destroying soil. |
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Definition
Population has ideal conditions:
Abundant space and food, no predators, no disease.
Population grows at a constant rate.
"j" curve |
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Term
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Definition
Initially plenty of food and space.
Growth, then slows and stops.
(birth rate slows or death rate increases)
"s" curve |
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Term
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Definition
| The largest # of individuals that an environment can support. |
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Term
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Definition
| Factors that cause population growth to decrease. |
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Term
| Density Dependent Factors |
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Definition
Depends on population size.
aka: competition |
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Term
| Density Independent Factors |
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Definition
Affects all populations the same.
aka: natural disasters |
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Term
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Definition
High birth rate and high death rate->sanitation, nutrition are better->high birth rate, low death rate->modernization+education->low birth rate, low death rate
(pop grows, then slowly stops) |
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Term
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Definition
Show relative amnt of energy at each trpohic level.
10% is available to the next level, 90% lost by heat |
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Definition
Reps the amnt of living organic matter @ each trophic level.
Usually most biomass at base.
Potential food available. |
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Term
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Definition
| Series of stepes in which organisms transfer energy by eating and being eaten. |
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Definition
| When feeding relationships among organaisms form a network of complex interactions. |
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Term
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Definition
1. Carbon as CO2 in atmosphere.
2. Released into atmosphere by volcanos, respiration, ect.
3. Used by plants to make carbs in photo.
4. Consumers eat plants & found in marine skeletons & oceans as calcium carbonate.
5. Eventually compounds break down and carbon is released into the atmosphere. |
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Term
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Definition
1. 78% of the atmosphere is nitrogen.
2. Only some bacteria can fully use it.
3. Bacteria convert nitrogen into ammonia through NITROGEN FIXATION.
4. Other bacteria convert ammonia into nitrates and nitrites.
5. Producers use to make proteins.
6. Consumers eat producers and use nitrogen to make their own proteins.
7. Organisms die and decomposers turn nitrogen into ammonia.
8. Bacteria change nitrates into nitrogen gas through DENTRIFICATION.
9. Goes back into atmosphere. |
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Term
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Definition
| The rate at which organic matter is created by producers. |
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Term
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Definition
Made of proteins and RNA.
Found in cytoplasm and Rough ER.
Assemble proteins. |
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Term
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Definition
Chemically modifies proteins.
Building site. |
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Definition
Has enzymes.
Stores proteins. |
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Term
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Definition
Stack of membranes w/ enzymes.
Packages proteins and other material made in rough ER.
To be stored. |
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Definition
| Cleans up/ get rid of waste. |
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Term
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Definition
Stores water, salts, proteins, carbs.
In Plants:
Very large, produces turgor pressure. |
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Definition
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Definition
Contain chlorophyll.
Converts light energy into organic molecules. |
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Term
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Definition
Microfilaments: threadlike, made of actin
Microtubules: hollow, made of tublins
Gives shape, helps to separate chromo. in cel division. |
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Definition
| Help organise cell division. |
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Term
| Exchanging material depends on... |
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Definition
1. Polarity
2. Size
3. Charge
Easy: small/polar/nonpolar/not charged
Med: charged/med size
Hard: very large |
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Term
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Definition
More solution, less water.
Cell shrivels. |
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Definition
Less solution, more water.
Cell bursts.
Except plant cells. |
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Definition
More from high to low concentration.
Need help of protein canal.
Still only kinetic energy. |
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Term
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Definition
Requires energy.
Moves very large molecules or against concentration gradient.
Endocytosis: Large molecule come in
Exocytosis: Molecules leave |
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Term
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Definition
| cells>tissue>organ>organ system> organism |
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Definition
| Molecule which absorbs some wave length and reflects others. |
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Term
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Definition
light*
6CO2 + 6H20* = C6H12O6 + 6O2*->release
chloraphyll*
* part of light reactions |
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