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Terms in this set (75)
bacteria eat a rotting leaf.
orchids grow in trees with out hurting OR helping them.
2 animals fight for food and space.
a tick drinks blood on a dog.
2 animals live together and both benefit.
weeds take over their environment.
buzzards eat a dead dog.
an animal catches another animal and eats it.
Changes that occur in a community over time, especially after disturbances as some species die out and some species move in
1st photosynthetic species to arrive, examples, moss & lichens
Lichen (a pioneer species)
-grow on bare rock
-mutualistic relationship between algae and fungus
What's the most important thing to be left during secondary succession?
In succession, it is a stable community that is not changing
A group of ecosystems that share similar climates and typical organisms
The status of an organism within its environment and community (affecting its survival as a species)
An interaction in which one organism captures and feeds on another organism
An interaction in which an herbivore eats parts of a plant or alga
A close relationship between two species that benefits at least one of the species.
A relationship between two species in which both species benefit
A relationship between two organisms of different species where one benefits and the other is harmed
A relationship between two organisms of different species where one benefits and the other is neither harmed nor benefited
An ecological succession that begins in an area where no biotic community previously existed
Succession following a disturbance that destroys a community without destroying the soil
A stable, mature community that undergoes little or no change in species over time
First species to populate an area during primary succession
Consists of all life on earth and all parts where life exsists
scientific study of interactions among organisms and their physical enviroment
any living part of an environment with which an organism interacts with other things in environment
non-living part of environment
use solar energy or chemical energy to produce food
producers of energy rich compounds that are later used be other organisms
chemical energy is used to produce carbohydrates
must acquire energy from other organisms by somehow ingesting them
organisms that rely on other organisms for energy and nutrients
eat dead material and carcasses
break down dead matter
eat plants and leaves
eat meat and plants
eat decaying stuff
system in where organisms transfer energy by eating and being eaten
floating and attached algae, does photosynthesis
network of feeding interactions
small swimming animals that feed on marine algae, must eat
steps in food chain or web
show the relative amount of energy or matter contained within each trophic level in food chain or web
total amount of living tissue within given trophic level
when elements pass from one organism to another and among and among parts of the biosphere
chemical sustances that an organism needs to sustain life
bacteria convert nitrogens into ammonia
converting nitrogens into gas which is released into atmosphere
nutrient whose supply limits productivity
a group of similar organisms that can breed and reproduce fertile offspring
group of individuals that belong to same species and living in the same area
many different populations that live together in defined area
organisms that live in a place together with their physical environment
group of ecosystems that share similar climates and typical organisms
the continuous process by which water moves from the Earth's surface to the atmosphere and back
the process by which molecules of a liquid absorb energy and change to a gas
the process by which a gas changes to a liquid
the process by which water vapor condenses, the drops of water in the cloud grow larger and eventually drop back to earth as rain, snow, sleet or hail
water evaporates from trees, plants, shrubs, etc
where animals give off water in the water cycle
from rain, snowmelt, or other sources, that flows over the land surface, and is a major component of the water cycle
water located beneath the earth's surface in soil pore spaces and in the fractures of rock formations
the process by which oxygen is exchanged between the earth and its atmosphere.
the process in which organisms (plants) use water along with sunlight and carbon dioxide to make their own food
the process by which nitrogen is exchanged between the earth and the atmosphere
the process of changing free nitrogen into a usuable form of nitrogen
found on the roots of some plants where certain bacteria live that perform nitrogen fixation
type of plant that includes clover, beans, peas, alfafa and peanuts that help with nitrogen fixation
This image represents the ______________________ cycle.
This image represents the ______________ cycle.
This image represents the ____ cycle
This image represents the ___ cycle
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