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Environmental Science is a?
- systematic approach learning about the environment
- systematic study of our environment and out place in it
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Which of the following is not a molecule?
Carbon: a molecule is made up of more than two atoms
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There is/are usually _____ tolerance limits responsible for limiting the number and location of species, hoever some organisms have _________________ that limits thier distribution.
- many
- a specific critical factor
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Malthus and Marx:
disagreed about the root causes of overpopulation poverty
Thomas Malthus (1798): human populations will outstrip thier food supply and collapse into starvation, crime, and misery.
Karl Marx: populatoin growth resulted from poverty, resource depletion, pollution, and other social ills.
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The location of specific biomes can be predicted based on...
precipitation and temperature
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In the normal I=PAT, which of the following would be representative of the A?
I=PAT A is the affluence leve
in the example, A means driving an SUV
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Name the Biomes
- Tropical Rainforest
- Tropical Savannah
- Desert
- Temperate Grassland
- Temperate Forest
- Boreal Forest
- Tundra
- Temperate Rainforest
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Name the biome with lots of water falls
- Tropical Rainforest
- occur where rainfall is abundant-more than 200 cm (80 in) per year
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What land is submerged?
- wetland, swamp
- Wetlands are shallow ecosystems in which the land surface is saturated or submerged at least part of the year
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Name the biome with high latitude, few trees, and low species.
- Tundra
- Compared to other biomes, tundra has relatively low diversity
- Temperatures are below freezing most of the year , making water unavailable to plants
- Tundra occurs at high latitudes or on mountaintops
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Warm and areas with low temperature
- Desert
- Deserts occur where precipitation is uncommon and slight, usually with less than 30 cm of rain per year
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Name the biome that is 50-60 degrees with low temperature and has slow growing vegetation.
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Name the biome that is hot year round.
Savannah
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Name what 3/4 of the planet is defined by salt water
Marine Environment
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Name the biome that has mid-latitude, very high precipitation, and supports living.
Temperate Rainforest
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Name the biome with rich soils.
- Temperate Grassland
- As in tropical latitudes, temperate (midlatitude) grasslands occur where there is enough rain to support abundant grass but not enough for forests
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Ideally Science?
Methodical and logical
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What is the difference from extinction now and in the past?
in the past it was a set rate and now it is due to human influence
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Define Species:
- interbred with each other and capable of offspring
- species are distinct organisms that persist because they can produce fertile offpsring
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What is one selected pressure on animals in the desert environment?
Drought, sunlight
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Energy is the ability to what?
- Both move an object and transfer heat from one object to another
- Energy is the ability to do work such as moving matter over a distance or causing a heat transfer between two objects at different temperatures
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What is symbiosis?
- When animals can coexist with one another
- Symbiosis is a process where two or more species live intimately together.
- There are three major types of symbiotic relationships: Mutualism, Commensalism, and Parasitism.
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What is the P in I=PAT?
Population
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What is the sympatric specification?
- When two species interact with each other
- Species arise in the same location as the ancestor species
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Especially effective strategy for reducing intra specific competition is?
different ecological niches for juveniles and adults
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What is the shape of the human growth curve in the past 800 years?
J curve
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What is the difference between a K-selected and an R-selected species?
- R-selected is having many offspring but a short life span
- K-selected is having a small number of offspring with a long life span taking care of them
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Describe how photosynthesis works?
- CO2 plus Hco sunligh C6H1206 produces sugar molecules and energy
- Photosynthesis converts radiant energy into useful, high-quality chemical energy in the bonds that hold together organic molecules
- Animals eat plants-or other animals that have eaten plants-and break down the organic molecules in their food through cellular respiration to obtain energy
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