To have killed or destroyed a large portion of (sea-life)
When there is none left of a species (If they have died out) they have reached ?
Communities of living organisms (plants, animals etc.) in a particular area that work together
Being highly destructive.
Predators at the top of the food chain.
The preying of one animal on another
Relating to feeding and nutrition.
A chain of events with one event in a system having a negative effect on another and so on.
finally in the end.
The variety of life on earth ,its communities and habitats.
How many of something in a single place.
A variety of species in a defined area.
Organisms that make their own food
The variety of species in an ecosystem
Organic matter that derives from living or recently living organisms
The area on earth were organisms live
An organism that only gains energy from other animals
The maximum quantity of organisms in an area
All the organisms in a habitat working together
An organism that gains energy from deceased organisms
Form of biology
Representation of energy flow
A simple diagram that represents the consumption of organisms in an ecosystem
Complex combination of food chains
An organism that only gains energy from plants
Animal that gets it's energy from autotrophs
An object or organism the limits the growth of a population
Organism that eats meat and plants
amount of organisms in one species
An organism that hunts another organism
An organism that is hunted by a predator
The nonliving parts of an ecosystem
A predator that is at the top of a food chain and that is not preyed upon by any other animal
A living part of an ecosystem
A relationship between two species in which one species benefits and the other is neither helped or harmed
An interaction that occurs when organisms try to get the same resources
All the populations of organisms in an ecosystem
An organism that obtains energy by feeding on other organisms
A helpful interaction among organisms living in a limited area that aids each organism's survival
An organsim that gets energy by breaking down dead organisms and the wastes of living things
The process in which fixed nitrogen compounds are converted back into nitrogen gas and returned to the atmosphere
All the living and nonliving parts of an environment as well as the ineractions among them
An organism that a parasite lives in or on
An environmental factor that prevents a population from increasing
A symbiotic relationship between two organisms in which both organisms benefit
An organism's role in its environment
The process that converts nitrogen in the atmosphere into compounds in the soil that are useful to a varity of organisms
An organism that lives in or on another organism and benefits at the other organism's expense
A symbiotic relationship in which one organism benefits and the other is harmed
A process by which plants use the sun's energy to make food
A group of organisms of the same species living in the same place
A relationship in which one animal hunts, kills and eats another animal
An organism that eats producers
An organism in a food web or food chain that makes its own food
A close relationship between two species that benefits at least one of the species (3 types-mutualism, commensalism, parasitism)
A feeding level in an ecosystem
A diagram showing all of the interconnected food chains in an ecosystem
Large variety of organisms and species in an ecosystem
An organism that breaks down dead organisms
A diagram that shows how energy decreases as it travels through the trophic levels of a food chain
A diagram showing a single pathway of energy transfer an ecosystem
An organism that eats both plants and animals
An organism that eats only other animals
An organism that eats only other plants
When two organisms fight over the same resource
All of the different populations of organisms living in an area
All of the living space on earth
Living and nonliving things interacting in an area
All of the members of the same species in an area
The organism that is hunted
The organism that hunts others for food
A trait that helps an organism survive
The scarcest resource that limits a population's size
The largest population size an ecosystem can hold
A type of relationship where one organism benefits while the other organism is harmed
A type of symbiosis where one species benefits and the other is not helped or harmed
A type of symbiosis where two organisms benefit from their relationship with each other
A relationship where to species interact and one is benefitted
Living part of the environment; includes anything made by a living organism
Non living part of the environment
Any organism able to make its own food (aka Producer)
An organism that has to eat other living things to survive (aka consumer)
Used by organisms to do everything it needs to live
Third level consumer. Often top of the food chain
The 1st level consumer. Eats producers
non living factors that effect an organism
an organism that eats only meat
the number of people, other living organisms, or crops
a group of interdependent organisms of different species growing or living together in a specified habitat
an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
an animal that feeds on dead organic material
The ecological role and space that an organism fills in an ecosystem.
The progressive replacement of one dominant type of species or community by another in an ecosystem until a stable climax community is established.
the scientific analysis and study of interactions among organisms and their environment
to represent the flow of food energy and the feeding relationships between organisms
A graphical model showing the interconnecting food chains in an ecological community
an organism that eats only plants
Non-native species disrupting and replacing native species
A factor present in an environment that controls a process, particularly the growth, abundance or distribution of a population of organisms in an ecosystem.
an organism that eats plants and animals
the amount of organisms of the same species in an area
one is predator, one is prey
an organism that makes its own food
A position in a food chain or Ecological Pyramid occupied by a group of organisms with similar feeding mode.
a biological community of interacting organisms and their physical environment
the increasing concentration of toxic substances within each successive link in the food chain.
a species that has a disproportionately large effect on its environment relative to its abundance
An organism that generally obtains food by feeding on other organisms
Main source of the mass of a plant
These organisms do photosynthesis
These organisms eat ONLY plants
These organisms eat plants and primary consumers
What trophic level is fund in the least abundance?
What ecosystems have the most biodiversity?
These organisms are not native and always harm an ecosystem
What is the main cause of species extinction?
This is the most important species in an ecosystem
This phrase describes the effect that a top consumer has on the ecosystem
What group of animals makes up most species in the world?
This is a way that humans degrade habitats
These species are likely to become endangered
This describes one individual in a population
This describes all diversity of life
True or false: Rainforest used to cover 50% of the world and now cover 25%
True or false: Rainforests contain 25% of all known species on earth
The number of different species in an ecosystem
The percent of that total population that one species makes up
An "S" shaped curve on a population graph
the rich variety of life on earth.
all the living and non-living parts of a community.
the study of the interactions between organisms and their enviorment.
the place in which an organism lives.
all the members of a species in an ecosystem
all the population in an ecosystem
part of earth that contains all ecosystems.
everything that surrounds are animal, or plant, including living/non-living things
an animal that feeds on flesh
maximum population in a environment
interacting group of species in a common location
recieve energy by consuming other organisms
animal that feeds on dead organic materials
role a specie plays in its environment
process which ecosystems change and develop
biology that deals with relations of organisms
community of living organisms
organism each dependent on the next as source of food
a system of interlocking and interdependent food chains
feeds on plants
species in which other species depend on
plant, fungus, or animals
resources are enviromental conditions limit growth
symbiosis that is beneficial to both organisms
eats both plants and animals
amount of species in a particular area
the praying on one animals on others
autotrophic organism that serves as a source of food for other organisms
each of several hiearchieal in an ecosystem
non living chemical and physical parts of the environment that affect living organisms and ecosystems
pesticides or heavy metal that move up in the food chain
two species competing for the same resource cannot coexist
any factor limiting the size of the population
Both living and non living that can influence the size of the population
living components of a ecosystem
variety of life
organisms that break down dead or decaying organisms
The study of how organisms interact with each other
All living things and their physical environments within a particular area
Change over time
An organisms habitat resource use and fundamental role in a community
The variety of organisms in an area
Able to meet current demand for a resource without depending the future supply
Largest group of organisms In which 2 individuals can produce fertile offspring
The process by which new species are generated
The Disappearance of a species from Earth
The extinction of an organism or species in one area
Anything an organism needs to survive
Killing of an animal illegally
Any part of an ecosystem that is living or used to be living
Members of a species that live in the same area at the same time
Matter that makes up earth and it's atmosphere
non-living organisms in an ecosystem
interaction between two different species living in a ecosystem
the ratio of the number of births to the size of the population
the number of deaths in a given area or period
living organisms in the ecosystem
beneficial to both organisms
a community of interacting organisms and their physical environment
the number of all the organisms of the same group or species
a species that other species in the ecosystem depends on
one of the two types of biological and ecological succession of plant life
the series of community changes which take place on a damaged habitat
the process of certain organisms that move up the food chain
the number of organisms a region can support without environmental issues
the extinction of a large number of species within a short period of time
a graph that shows the biomass or bio productivity at each trophic level
factors that effect the size of the population
weather/climate that influence the population size
environmental conditions that limit certain things for organisms in the ecosystem
the variety of life in the world/habitat
the important benefits for organisms that comes from species working in the ecosystem
A group of similar organisms that can breed and produce fertile offspring
The average weather conditions in an area over a long period of time
A group of individuals that belong to the same species and live in the same area
Place where an organism lives
organism's role, or job, in its habitat
The removal of trees faster than forests can replace themselves.
Large geographic area with a similar climate and ecosystem
the living organisms in an ecosystem
Any nonliving component of an environment
the diversity of plant and animal life in a particular habitat (or in the world as a whole)
species whose population size is rapidly declining and will become extinct if the trend continues
Species that is likely to become endangered.
no longer present anywhere in the world; could be biotic or abiotic.
permanent elimination of a species from earth; irreversible loss
the loss of living space due to human activity or catastrophic events
plants and animals that have migrated to places where they are not native
An increase in population over a period of time
Release of harmful materials into the environment
the use or extraction of a resource until it is depleted
The process of making new products from materials that were used in another product.
using a resource over and over in the same form
to use less of something
a piece of land where waste materials are dumped
A low area of land that is built up from deposits of solid refuse in layers covered by soil.
A measure of how much an individual consumes, expressed in area of land
All the different populations that live together in an area
a community of organisms and their abiotic environment
Habitat Destruction, Invasive Species, Population, Pollution, Overharvesting