Term
The is the portion of earth where life occurs Most organisms exist b/t ft above sea level and feet below sea level |
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Definition
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The is the deepest part of the world's oceans and it is located in the ocean. What are the top 5 deepest oceans in the world starting with the deepest? |
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Definition
Marianas trench; pacific Pacific, Atlantic, Indian, Southern and Arctic |
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Term
A(n) is defined by living and non-living organisms interacting to process energy and cycle materials. It uses basic functional units and there is no defining size limitations (eg, the earth or a discarded tire with water in it). |
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Definition
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Term
A natural grouping of different plants and animals within a given habitat is defined as a(n) . Same species living together within a given area is defined as a(n) . |
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Definition
biotic community population |
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Term
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Definition
Overfishing reduced the # of herring. When the herring went missing, so did the harbor seals & sea lions. When the harbor seals and sea lions went missing, the orcas had to look for something else to eat: otters. Otters are very small, & the orcas had to eat a bunch of them. This decimated the otter population. |
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Term
Explain the community concept |
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Definition
It is one of the most important ecological concepts. It emphasizes that different organisms dwell together in an orderly manner. By illuminating the importance of a community as a whole, the community concept can be used by humans to manage a particular organism in the sense of increasing or decreasing its numbers. An example is the orcas and otters. |
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Term
A species that is brought from someplace else that has no natural predator in its new home is called a(n) species. What were the 2 examples he gave? |
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Definition
invasive; kudzu & dandelions (dandelions were brought from Europe to be eaten like lettuce) |
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Term
are the organisms that have a major modifying influence on the community. They usually control the flow of energy through the environment. |
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Definition
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Term
are usually the ecological dominant. Give 2 reasons why this is true. |
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Definition
Plants are usually the ecological dominant b/c 1) They provide food and shelter. 2) They affect and modify their physical environment (they make topsoil, moderate temps, etc) |
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Term
As a general rule, the number of dominant species within a community increases/decreases as one moves toward the poles and increases/decreases as one moves towards the equator. Dominant species are greater/fewer in areas of extreme climate |
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Definition
decreases; increases fewer |
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Term
Which pole has polar bears? |
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Definition
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Term
Species composition of a biotic community is profoundly affected by the physical characteristics of the environment, especially and . Terrestrial communities have beed divided into general groupings called . |
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Definition
Temperature and rainfall biomes |
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Term
Usually the key characteristic of a biome is the dominant type of . |
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Definition
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Term
The following are characteristics of what biome? The temps are very low at night and very high during the day. The plants and animals are characterized by species that are drought tolerant. The animals are active at night, remaining under cover during the day. |
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Definition
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Term
What is the max amount of rain a biome can have annually to be considered a desert? What other biome did we learn was a desert? How many inches of rain does it get annually? Do deserts have proportionally more or less annual plants than other biomes? |
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Definition
10" The tundra receives 8"/yr More |
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Term
What biome has the following characteristics? Permafrost and lots of big mosquitoes. |
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Definition
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Term
What biome has lots of lakes and covers much of Canada, Scandinavia & Russia? What is this biomes dominant vegetation? |
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Definition
Taiga Conifer trees including spruce, firs, hemlock and pines. |
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Term
What biome has a milder climate and more rainfall than the taiga? T or F: Tropical Rain Forest soils are exceedingly thin and nutrient poor. In which climate are carnivores such as coyotes & lions (rodents and many species of reptile) abundant? |
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Definition
Temperate Deciduous Forest True Grasslands |
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Term
What biome has high temps and an annual rainfall of > 100"? Which biome is where Western, Chinese & Japanese civilizations developed? What biome has a high evaporation rate and insufficient rainfall to sustain the growth of trees? |
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Definition
Tropical Rain Forest Temperate Deciduous Forest Grasslands |
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Term
Which biome has the highest concentration of organic matter in the soil? Which biome is being destroyed faster than any other due to human population growth and governmental actions? Maples, Oak, Beech and Hickory trees are common in what biome? |
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Definition
Grasslands Tropical Rain Forest Temperate Deciduous Forest |
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Term
What are the 4 layers of plant growth in the tropical rain forest? |
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Definition
1) Top canopy at 200' 2) Lower canopy at 100' 3) sparse understory 4) ground level |
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Term
What biome is Oklahoma? What biome has the highest number of species on the planet, but the number in each species is limited? |
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Definition
Grasslands Tropical Rain Forest |
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Term
Why do deserts have high daytime temps and low nighttime temps? The rate tells us we lose 6 degrees Celsius per 1000 meters. |
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Definition
B/c there is no organic matter to hold moisture in the sand. Adiabatic lapse |
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Term
W/in any biotic community, each species is defined by its own unique position or , different from that of any other member of the community. The of says that when 2 species are competing for the same limited resources, only one will survive. |
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Definition
Ecological niche The "Principles of Competitive Exclusion" |
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Term
A(n) is usually defined by its size and food habits What medication did he mention that is used for head lice? |
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Definition
Ecological niche Quell lotion |
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Term
of allow cohabiting species to overcome the principles of competitive exclusion. What 2 examples did he give? |
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Definition
Partitioning of Resources Example 1: Head lice aren't found in the pubic region and crab lice aren't found in the head region. Example 2: Certain species may come to the watering hole at different times of the day. |
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Term
are environmental factors that limit or control where an organism can live. |
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Definition
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Term
What are the 4 examples of limiting factors? Organisms that are widely distributed will have a high/low (choose) tolerance for these factors. |
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Definition
Temperature, Oxygen, Minerals, Water high |
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Term
Different stages of a life cycle exhibit different tolerances. What 2 examples did he share to explain this? |
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Definition
Example 1: If thalidomide would have been taken before or after organogenesis, there would not have been any birth defects. Example 2: acid rain is deadly to roe, but not to adult fish. |
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Term
The adiabatic lapse rate tells us we lose (how many?) degrees Celsius per 1000 (what units?). |
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Definition
6 degrees Celsius per 1000 meters This could be asked on a test: if you took off at 700F, & you went up 36,000 feet, what is the temperature? |
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Term
What is the ultimate source of life and energy? |
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Definition
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Term
What does the first law of thermodynamics say? The second law? |
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Definition
Energy can neither be created or destroyed. W/ every energy transformation, there is a loss of usable energy (it's the available energy, not the total energy that decreases). |
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Term
energy accomplishes work energy is absorbed and converted energy is converted to wind currents energy can be converted to kinetic energy. |
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Definition
Kinetic Solar Heat Potential |
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Term
states that all energy is moving toward an ever less available and more dispersed state. Which law of thermodynamics has implications towards ecologic relationships? Choose: There will always, never, sometimes be a significant loss of usable energy whenever energy is transferred from one organism to another. |
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Definition
Entropy The second law Always |
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Term
Energy moves one way through ecosystems becoming more dispersed and eventually degraded to . |
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Definition
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Term
What is Klinkenbeard's job? What did he get his degree in? |
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Definition
Industrial hygienist mycology (he went on a black mold tangent: very few species of mold are black mold, and the ones that are black mold are not going to cause a problem unless you have a weak immune system) |
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Term
A transfer of food energy through a given source through a series of food organisms defines a(n) . |
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Definition
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Term
FOOD CHAINS convert the sun's energy into food energy. Give examples. consume producers. Give examples. are essential to recycle detritus back into the soil where it will once again be available for use by plants, algae, etc. Give examples. |
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Definition
Producers; plants and algae Consumers; carnivores & herbivores Decomposers; bacteria and fungi |
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Term
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Definition
Long ago, there was an ice age. Did we have to go through global warming to get out of the ice age? Many scientists believe we have come out of 9 ice ages. In the last 5 yrs, OKC temps have dropped 1.1 degrees. Some believe carbon monoxide in ice cores tell us there is global warming. |
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Term
He went on a 5 minute tangent at about the 1:35:00 mark on the first day of class. I don't feel like typing that much stuff. |
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Definition
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Term
food chains (predator chains) start with a plant base and proceeds from smaller to larger animals. food chains are where dead organic matter is broken down by microbes which are consumed by small animals that derive energy from bacteria. food chains are where energy flows from larger to smaller animals (dogs to fleas to protozoans). |
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Definition
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Term
How do ecological pyramids work? |
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Definition
Energy passes from producers to primary consumers to secondary consumers and so on. Each stage is called a trophic level. Placement into a trophic level does not depend on species; rather, it depends on factors such as age or sex (ie, male and female mosquitos). |
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Term
At the bottom of an ecological pyramid are the (more, biomass). In the middle, are the . At the top, are the (fewer, larger). |
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Definition
producers primary consumers final consumers |
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Term
At each transfer of energy within a food chain approximately % of the chemical energy stored in organisms of the lower level is lost and therefore unavailable to the higher level. For example, 10,000 lbs of corn --> #s of beef --> #s of human |
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Definition
90% 10,000 --> 1,000 --> 100 So, by moving humans one step closer in the food chain, 10X more energy becomes directly available. |
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Term
Organisms need a number of inorganic materials in addition to energy. The cycling of earth's materials through living systems and back to the earth is called . 40 elements that are considered essential are called . |
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Definition
biogeochemical cycling nutrients |
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Term
What are the macronutrients? What are the trace elements? |
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Definition
S, P, O, N, C, H, Ca, Mg, K I, Fe, Cl, Cu, Zn |
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Term
What are the 2 types of biogeochemical cycling? |
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Definition
Gaseous cycling and sedementary cycling |
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Term
What are the 2 types of the gaseous cycle? |
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Definition
carbon and nitrogen cycle |
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Term
The completion of the carbon cycle is accomplished by breaking down of organic molecules to inorganic carbon dioxide by what 4 ways? |
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Definition
1) Respiration 2) Decay of dead organisms 3) natural weathering of limestone 4) combustion of organic fuels (coal, oil, gas, wood) |
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Term
What are the 2 basic sources of nitrogen? |
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Definition
1) Free nitrogen gas in the atmosphere 2) Nitrogen stored in rock forming mineral |
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Term
Atmospheric nitrogen is inert and cannot be used by most plants. What are the 2 ways it can be converted to an accessible form for plants? Which way is most significant? |
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Definition
1) Lightning converts nitrogen to nitrogen oxide. Nitrogen oxide dissolves in the soil and bacteria convert it to nitrates. Plants can take up nitrates. 2) Fixation of atmospheric nitrogen is the most significant way. Nitrogenous wastes (dead organisms, feces) are decomposed to ammonia, then converted to nitrates that may be taken up by plants are converted back to free nitrogen gas. |
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Term
What species is important for nitrogen fixation? |
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Definition
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Term
is defined as component communities of an ecosystem changing in an orderly sequence within a given area is “the gradual replacement of one biotic community by another over time” |
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Definition
ecological succession succession |
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Term
He went over slides 51 - 56 really fast and said there would probably be a simple question about it. |
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Definition
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Term
The maximum growth rate that a population could achieve in an unlimited environment is referred to as that population’s . It never happens due to “limiting factors”: food shortage, overcrowding, disease predation, and accumulation of toxic wastes. The environmental pressures that limit a population’s capacity for growth is called |
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Definition
biotic potential environmental resistance |
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Term
Populations exhibit characteristic patterns of increase known as what? What are the 2 examples? |
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Definition
Population growth forms S curve and J curve |
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Term
Define the S curve. Be sure to give an example. |
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Definition
In the S curve, birth and death are brought into balance, or you could say there is an equilibrium b/t biotic potential and environmental resistance. There is an upper asymptotic relationship, b/c the # of organisms approaches capacity but never reaches it. The upper asymptote is known as the "carrying capacity". The paramecium (protozoa) is an example. |
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Term
Define the J curve. Be sure to give an example. He said he may ask you to draw an S or J curve. It will not copy and paste from his notes for some reason. It's slide 61 from ch 1 & 2 notes. Be sure to notice that when you draw your curve, you don't start on the line. You don't start out with zero organisms. |
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Definition
In the J curve, the exponential growth exceeds the carrying capacity and frequently results in population crashes. Snowshoe hares are an example. |
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Term
What's the guys name that proposed if we continue on like we're going, we'll eventually use up all of our resources (J-curve)? are self-regulating factors to control population. |
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Definition
Malthus said population would outpace agriculture homeostatic controls |
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Term
How is the growth rate defined? |
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Definition
It's the difference in the birth rate and the death rate. |
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Term
A tangent: He said everyone should have a CIA fact book. It will tell you anything about any country you want to know about. |
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Definition
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Term
What countries have the top 3 populations in the world? |
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Definition
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Term
What country has the highest birth rate? |
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Definition
Niger has the highest birth rate at 54/1000. |
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Term
Why do economically underdeveloped countries have higher birth rates? |
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Definition
B/c their children are essentially their social securtiy. They hope for boys, b/c the girls marry into another family. |
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Term
What are the 3 major factors that led to a population explosion? |
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Definition
1) Public sanitation 2) Advances in agriculture (being able to grow ur own crop rather than being a hunter and gatherer) 3) Control over infectious diseases |
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Term
What was responsible for transmitting the bubonic plague? What is a bubo? |
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Definition
Bacteria from fleas on rats A large black lymphnode |
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Term
What is a demographic transition? What is an incomplete demographic transition? |
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Definition
The falling of both birth and death rates. Moving from high births and high deaths to high births and low deaths. |
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Term
What ages are considered economically productive? A high percentage of the population under the age of is indicative of explosive growth potential of a population |
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Definition
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Term
The sun is the ultimate source of and . |
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Definition
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Term
T or F: An ecosystem does not use basic functional units T or F: An ecosystem has no defining size limitations |
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Definition
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Term
What 3 countries does the Taiga cover? |
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Definition
Scandinavia, Russia and Canada |
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Term
Why don't the grasslands have many trees? What are the common trees found in the temperate deciduous forest? |
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Definition
They have a high evaporation rate and insufficient rainfall Maple, Oak, Beech, and Hickory |
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Term
An ecological niche is usually defined by and ? |
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Definition
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Term
The partitioning of resources allow a species to overcome what? |
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Definition
The principles of competitive exclusion |
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Term
Decomposers, such as and , are important for recycling back into the soil where it will be available for plants, algae, etc. |
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Definition
bacteria; fungi; detritus |
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Term
What is a stage in an ecological pyramid called? |
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Definition
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