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APES 9-28

To study for the APES quiz

QuestionAnswer
Any form of life Organism
Basic unit of life in an organism Cell
Surrounded by a membrane, has a distinct nucleus and organelles Eukaryotic cell
Surrounded by a membrane, but inside the cell There is no distinct nucleus or any internal parts enclosed by membranes Prokaryotic cell
A group of organisms that resemble one Another in appearance, behavior, chemistry and genetic makeup Species
Common in species such as bacteria with only One cell with divides into 2 cells, that are clones or replicas of the original cell Asexual reproduction
Occurs in organisms that produce offspring by combining gametes from both parents Sexual reproduction
Consists of a group of interacting individuals of the same species that occupy a specific area at the same time Population
We do not all look the same or behave exactly Genetic diversity
Complex interacting network of plants, animals and microorganisms Community
A community of different species interacting with one another and with their non-living environment of matter and energy Ecosystem
All of earth's ecosystems together Biosphere
A thin envelope of air around the planet Atmosphere
Inner layer that extends about 11 miles above sea level but contains most of the earths air Trophosphere
11-30 miles, lower portion that contains enough ozone to filter out most of the suns harmful ultraviolet radiation, thus allowing life to exist on land and in the surface layers of bodies of water Stratosphere
Consists of Earth's liquid water, ice and water vapor Hydrosphere
The earth's crust and upper mantle, the crust contains nonrenewable fossil fuels and minerals we use as well as potentially renewable soil chemicals needed for plant life Lithosphere
The portion of earth in which living organisms exist and interact with one another an with their nonliving environment Biosphere
Greenhouse gases in the atmosphere reduce the flow of heat back into space. This helps warm the planet by acting somewhat like the glass in a greenhouse or the windows in a car, which allow a buildup of heat Greenhouse gas effect
Large regions characterized by a distinct climate and specific life forms Biomes
Long term patterns of weather Climate
Aquatic equivalents of biomes Aquatic life zones
A region containing a mixture of species from adjacent ecosystems and often species not found in either of the bordering ecosystems Ecotone
Range of chemical and physical conditions that must be maintained for populations of a particular species to stay alive, grow , develop and function normally Range of tolerance
There are minimum and maximum limits for physical conditions and concentrations of chemical substances, called tolerance limits, beyond which no members of a particular species can survive Law of tolerance
Too much or too little of any abiotic factor can limit or prevent growth of a population, even if all other factors are at or near the optimum range of toleration Limiting factor
Amount of oxygen gas dissolved in a given volume of water at a particular temperature and pressure Dissolved oxygen content
Amounts of various inorganic minerals or salts dissolved in a given volume of water Salinity
The complete set of chemical reactions that carries out this role in cells and organisms Metabolism
They make their own food from compounds obtained from their enviornment Producers
The process for using sunlight to make carbohydrates Photosynthesis
The process of converting simple compounds from their environment into more complex nutrient compounds without sunlight Chemosynthesis
Get their energy and nutrients by feeding on other organisms or their remains Consumers
Primary consumers who feed directly on producers Herbivores
Feed on other consumers, with those feeding only on primary consumers called secondary consumers and those feeding on other carnivores called tertiary consumers Carnivores
Feed on detritus or parts of dead organisms and cast off fragments and waste of living organisms Detritivores
Extract nutrients from partly decomposed organic matter in leaf litter, plant debris and animal dung Detritus feeders
Recycle organic matter in ecosystems by breaking down dead organic material to get nutrients and release the resulting simpler inorganic compounds into the soil and water, where they can be taken up as nutrients by producers Decomposers
Using oxygen to convert organic nutrients back into carbon dioxide and water Aerobic respiration
Breaking down glucose in the absence of oxygen Anaerobic respiration
The different life forms and life sustaining processes that can best survive the variety of conditions currently found on earth Biodiversity
Variety among the species or distinct types of living organisms found in different habitats of the planet Species diversity
Variety of forests, deserts grasslands, streams, lakes, oceans, wetlands and other biological communities Ecological diversity
Biological and chemical processes or functions such as energy flow and matter cycling needed for survival of species and biological communities Functional diversity
The sequence of organisms, each of which is a source of food for the next Food chain
A feeding level Trophic level
Complex network of interconnected food chains Food web
The dry weight of all organic matter contained in its organisms Biomass
The percentage of usable energy transferred as biomass from one trophic level to the next Ecological efficiency
Energy loss for a simple food chain assuming a 90% loss with each transfer Pyramid of energy flow
Represents the storage of biomass at various trophic levels in an ecosystem Pyramid of biomass
An estimate of the number of organisms at each trophic level Pyramid of numbers
The rate at which an ecosystem's producers convert solar energy into chemical energy as biomass Gross primary productivity
Rate at which producers store chemical energy as biomass Net primary production
An atom, ion or molecule an organism needs to live, grow or reproduce Nutrient
Life-earth chemical cycles that are driven directly or indirectly by incoming solar energy and gravity, include the carbon, oxygen, nitrogen, phosphorus and hydrologic cycles Biogeochemical cycles
Water cycle which collects, purifies and distributes the earths fixed supply of water Hydrologic cycle
The amount of water vapor found in a certain mass of air and is usually expressed as grams of water per kilogram of air Absolute humidity
Amount of water vapor in a certain mass of air, expressed as a percentage of the maximum amount it can hold at that temperature Relative humidity
Tiny particles on which droplets of water vapor can collect Condensation nuclei
The temperature at which condensation occurs Dew point
A global gaseous cycle which is based on carbon dioxide and makes up .036 percent of the volume of the trophosphere and is dissolved in water Carbon cycle
Global gaseous cycle, thats the most complex of the earths biogeochemical cycles Nitrogen cycle
Sedimentary cycle , phosphorus moves slowly from phosphate deposits on land and in shallow ocean sediments to living organisms , and then move slowly back to the land and ocean Phosphorus cycle
Gaseous cycle , much of earths sulfur is stored underground in rocks and minerals, including sulfate salts buried deep under ocean sediments Sulfur cycle
We depend upon nature for food, air, water and almost everything else we use Ecosystem services
Competition between members of the same species for the same resources Intraspecific competition
Competition between members of two or more different species for food, space or any other limited resource Interspecific competition
One species may limit another's access to some resources, regardless of its abundance Interference competition
Competing species have roughly equal access to a specific resource but different in how fast or efficiently they exploit it Exploitation competition
The dividing up of scarce resources so that species with similar needs use them at different times in different ways or in different places Resource partitioning
Two species involved in a way that they both benefit Mutualism
Occurs when one parasitic species feeds on the host organism by living on or in the host Parasitism
A symbiotic interaction where one species benefits but the other is neither harmed nor helped Commensalism
The gradual change in species composition of a given area Ecological succession
Involves gradual establishment of biotic communities on nearly lifeless ground Primary succession
The more common type succession, involves the reestablishment of biotic communities in an area where a biotic community is already present Secondary succession
Grow close to the ground, can establish large populations quickly under harsh conditions and have short lives Early successional plant species
Has less hardy herbs, grasses and low shrubs usually replaced by trees that need lots of sunlight and are adapted to the areas climate and soil Midsuccessional plant species
Mostly trees that can tolerate shade Late successional plant species
Both organisms benefit but they can live independently from one another Facultative mutualism
Both organisms benefit but they cannot live without the other one Obligate mutualism
One organism benefits from living inside another organism and the host is harmed Endoparasitism
One organism benefits from living outside another organism Ectoparasitism
The animal highest on the food chain will accumulate the most toxin Biomagnification
Toxins are not excreted over time and build up in the fatty tissues of an organism Bioaccumulation
2 types of food chains Grazing and detrited
Photosynthesis equation 6h20+6co2= c6h12o6+ 6o2
Created by: Khalil8414
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