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Chapter 3-4 Ecology Jung BIO H
Terms in this set (63)
Scientific study of interactions among organisms and between organisms and their environment
Consists of all life on Earth and all parts of the Earth in which life exists, including land, water, and the atmosphere.
A group of ecosystems that share similar climates and typical organisms
all the organisms that live in a place, together with their physical environment
an assemblage of different populations that live together in a defined area
A group of individuals that belong to the same species and live in the same area
A group of similar organisms that can breed and produce fertile offspring.
the first producers of energy-rich compounds that are later used by other organisms
Organisms that make their own food
Use Solar Energy to produce carbohydrates
Use inorganic molecules to produce carbohydrates
Make energy available when other organisms eat them
organisms that rely on other organisms for energy and nutrients
acquire energy from other organisms
flows through the ecosystem in a one-way stream, from primary producers in various consumers
A series of steps in which organisms transfer energy by eating and being eaten
Floating algae that are primary producers in some aquatic food chains
the network of feeding relationships
small free-floating animals that form part of plankton
levels of nourishment in a food chain
Pyramid of energy
A pyramid that shows the total amount of energy available at each trophic level of a food chain or food web.
Only ____ of the energy in each trophic level pass through the next level because only the energy that was stored in the organism passes to the next trophic level. (Pyramid of energy)
grow / cellular / homeostasis
Most of the energy is used to _______, carry out ____________ activities and maintain __________. (Pramid of Energy)
Pyramid of Biomass
A pyramid that illustrates the total mass of all the organisms in a trophic level.
total amount of living tissue within a given trophic level
Pyramid of Numbers
shows the relative number of individual organisms at each trophic level
_______ is recycled within and between ecosystems.
Elements move from an abiotic portion of the environment such as the atmosphere, into living things, and back again.
autotrophic organisms use CO2 and convert it into organic compounds
organisms break down organic compounds and release CO2 in to the atmosphere
humans burn fossil fuels to release CO2
release carbon dioxide into the atmosphere after organic compounds are broken down.
Amino acids / nucleic acid
Nitrogen is need to make ______ and ________(DNA/RNA)
_____ of the atmosphere of the Earth is Nitrogen Gas.
An organism that obtains energy by eating animals
An organism that obtains energy by eating only plants
An organism that eats both plants and animals
An organism that eats dead organic matter
An organism that breaks down wastes and dead organisms
An organism that consumes the carcasses of other animals
What are the 4 ways Carbon moves through the ecosystem?
Process of converting nitrogen gas into ammonia
decomposers convert organic waste into ammonia
ammonia is converted to nitrate ions (NO3-) and (NO2-)
process by which bacteria convert nitrates into nitrogen gas
excessive richness of nutrients in a lake or other body of water that causes a dense growth of plant life and death of animal life from lack of oxygen.
sudden increase in to amount of algae due to eutrophication
rate at which organic matter is created by producers in an ecosystem
The ____ of the sun hitting the earth is a major factor in climate
Convection- hot air rising, cold air falling
Wind is driven by ______
Biological influences on an organism within an ecosystem
Nonliving components of environment.
Full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions
A common demand by two or more organisms upon a limited supply of a resource
An interaction in which one organism kills another for food.
relationship in which two species live closely together
both organisms benefit
A relationship between two organisms in which one organism benefits and the other is unaffected
One organism benefits and the other is harmed
series of gradual changes that occur in a community over time
succession that occurs on surfaces where no soil exists
The first species to populate an area
Stable collection of organisms in a area
a disturbance in the ecosystem; a community is replaced by another
Succession in a Marine Ecosystem
1987: Found Unusual Community living on a whale carcass
Stage 1: Arrival of whale carcass attracts many scavengers and decomposers
Stage 2: Tissue is gone
Stage 3: Skeletal remains only
Recommended textbook explanations
Environmental Science: Sustaining Your World
G. Tyler Miller, Scott E. Spoolman
Eldon D. Enger
Environmental Science: Your World, Your Turn (Florida)
Jay H. Withgott
Holt Environmental Science (Florida)
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