Type
Crossword
Description

The nonliving parts of an ecosystem Abiotic Factor
A predator that is at the top of a food chain and that is not preyed upon by any other animal Apex Predator
A living part of an ecosystem Biotic Factor
A relationship between two species in which one species benefits and the other is neither helped or harmed Commensalism
An interaction that occurs when organisms try to get the same resources Competition
All the populations of organisms in an ecosystem Community
An organism that obtains energy by feeding on other organisms Consumer
A helpful interaction among organisms living in a limited area that aids each organism's survival Cooperation
An organsim that gets energy by breaking down dead organisms and the wastes of living things Decomposer
The process in which fixed nitrogen compounds are converted back into nitrogen gas and returned to the atmosphere Denitrification
All the living and nonliving parts of an environment as well as the ineractions among them Ecosystem
An organism that a parasite lives in or on Host
An environmental factor that prevents a population from increasing Limiting Factor
A symbiotic relationship between two organisms in which both organisms benefit Mutualism
An organism's role in its environment Niche
The process that converts nitrogen in the atmosphere into compounds in the soil that are useful to a varity of organisms Nitrogen Fixation
An organism that lives in or on another organism and benefits at the other organism's expense Parasite
A symbiotic relationship in which one organism benefits and the other is harmed Parasitism
A process by which plants use the sun's energy to make food Photosynthesis
A group of organisms of the same species living in the same place Population
A relationship in which one animal hunts, kills and eats another animal Predation
An organism that eats producers Primary Comsumer
An organism in a food web or food chain that makes its own food Producer
A close relationship between two species that benefits at least one of the species (3 types-mutualism, commensalism, parasitism) Symbiosis
A feeding level in an ecosystem Trophic Level

Ecology Vocabulary Crossword

Type
Crossword
Description

A diagram showing all of the interconnected food chains in an ecosystem Food web
Large variety of organisms and species in an ecosystem Biodiversity
An organism that breaks down dead organisms Decomposer
A diagram that shows how energy decreases as it travels through the trophic levels of a food chain Energy Pyramid
A diagram showing a single pathway of energy transfer an ecosystem Food Chain
An organism that eats both plants and animals Omnivore
An organism that eats only other animals Carnivore
An organism that eats only other plants Herbivore
When two organisms fight over the same resource Competition
All of the different populations of organisms living in an area Community
All of the living space on earth Biosphere
Living and nonliving things interacting in an area Ecosystem
All of the members of the same species in an area Population
The organism that is hunted Prey
The organism that hunts others for food Predator
A trait that helps an organism survive Adaptation
The scarcest resource that limits a population's size Limiting Factor
The largest population size an ecosystem can hold Carrying Capacity
A type of relationship where one organism benefits while the other organism is harmed Parasitism
A type of symbiosis where one species benefits and the other is not helped or harmed Commensalism
A type of symbiosis where two organisms benefit from their relationship with each other Mutualism
A relationship where to species interact and one is benefitted Symbiosis
Living part of the environment; includes anything made by a living organism Biotic
Non living part of the environment Abiotic
Any organism able to make its own food (aka Producer) Autotroph
An organism that has to eat other living things to survive (aka consumer) Heterotroph
Used by organisms to do everything it needs to live Energy
Third level consumer. Often top of the food chain Tertiary Consumer
The 1st level consumer. Eats producers Primary Consumer

Ecology Study Worksheet Crossword

Type
Crossword
Description

an organism that is able to form nutritional organic substances from simple inorganic substances autotroph
an organism deriving its nutritional requirements from complex organic substances heterotroph
A non-living part of an ecosystem. abiotic factor
the part of the earth within which life occurs biosphere
A living part of an ecosystem bioticfactor
An animal that eats only other animals carnivore
A symbiotic relationship in which one organism benefits and the other is unaffected commensalism
An organism that obtains energy by feeding on other organisms consumer
All the living and non-living things that interact in an area Ecosystem
A series of events in which one organism eats another Food chain
The pattern of overlapping food chains in an ecosystem. food web
An animal that eats only plants. Organism that obtains energy ONLY from producers Herbivore
An organism that provides a source of energy or a suitable environment for a virus or for another organism to live Host
A symbiotic relationship in which both organisms benefit Mutualism
A symbiotic relationship in which one organism benefits while the other is harmed Parasitism
An animal that eats both plants and animals Omnivore
A carnivore that hunts and kills other animals for food and has adaptations that help it capture the animals it preys upon Predator
An animal that the predator feeds upon Prey
Organisms that use sunlight to make food Producer
A close relationship between two organisms in which at least one of the organisms benefits Symbiosis

Ecology vocabulary crossword puzzle

Type
Crossword
Description

What are animals called that eat meat? Carnivores
Animals that eat plants are? Herbivores
If animals eat both plants and meat they are called Omnivores
If the number of organisms that an environment can support due to limited resources it is Carrying capacity
If an organism cant carry out photosynthesis then they will have to eat on other organisms they are called ? Heterotrophs
A section of biospheres that has different types of organism intereacting with each other and with their environment is called Ecosystem
If a animal feeds on a herbivore and they are carnivores their known as Secondary consumers
The living things that lives in an area and interacts with each and also depend with each others are called Biotic Factors
The non-living things that living things need in order to survive are called Abiotic factors
A diagram that shows the transfer of food energy from one organism to the next organism is called Food chain
A web that is made of more than two food chain inter connect is Food web
A herbivore that feeds on plants are called Primary consumers
Are plants and algae they produce their own food thought process of photosynthesis are Autotrophs
A plant that uses photosynthesis to store energy is called Producers
The struggle between members of the same species or different species for limited reasources is called Competition
If the number of specfic organism in an area is known as Population density
A symbiotic relationship in which both organism benefit is called as Mutualism
A close long term of relationships between two organism of different species is called Symbiosis
A type of symbiotic relationship in which one organism benefits while the other is neither helped or harmed is called Commensalism
A role of an organism in an ecosystemis called a Niche

principles of ecology Crossword

Type
Crossword
Description

a symbiotic relationship in which both partners benefit mutualism
a symbiotic relationship that benefits one species while the other species is harmed parasitism
all the living organisms in an enviroment biotic factor
all strategies and adaptions a species uses in its enviroment habitat
any relationship in which two species live closely together symbiosis
organisms that seek out and eat other organisms predators
organisms that are eeaten prey
made up of populations or organisms that live in a common area community
anything that limits an organisms ability to live in a particular enviroment limiting factor
the process of gradual, natural change and species replacement that takes place in the communities of an ecosystem over time succession
a stable community formed after primary or secondary succession climax community
large group of ecosystems that shares the same type of climax and a diverse group of plants biomes

Chapter 2: Principles of Ecology Crossword

Type
Crossword
Description

scientific study of all the interrelationships between organisms and their environment ecology
relatively thin layer of Earth and its atmosphere that supports life biosphere
any living factor in an organism's environment biotic
large group of ecosystems that share the same climate and have similar types of communities biome
any nonliving factor in an organism's environment, such as soil, water temperature,and light availability abiotic
group of organisms of the same species that occupy the same geographic place at the same time population
biological community and all the nonliving factors that affect it ecosystem
physical area in which an organism lives habitat
organism that captures energy from sunlight or inorganic substances to produce its own food autotroph
exchange of matter through the biosphere involving living organisms, chemical processes, and geological processes biogeochemical
total mass of living matter at each trophic level boimass
heterotroph that preys on other heterotrophs carnivore
symbiotic relationship in which one organism benefits and the other organism is neither helped nor harmed commensalism
process in which fixed nitrogen compounds are converted back into nitrogen gas and returned to the atmosphere denitrification
heterotroph that decomposes organic material and returns the nutrients to soil. air . and water, making the nutrients available to other organisms detritivore
simplified model that shows a single path for energy flow through an ecosystem food chain
model that shows many interconnected food chains and pathways in which energy and matter flow through an ecosystem food web
heterotroph that eats only plants herbivore
organism that cannot make its own food and gets its nutrients and energy requirements by feeding on other organisms heterotroph
anything that takes up space and has mass matter
symbiotic relationship in which both organisms benefit mutualism
role, or position, of an organism in its environment niche
process in which nitrogen gas is captured and converted into a form plants can use nitrogen fixation
chemical substance that living organisms obtain from the environmentto carry out li nutrient
chemical substance that living organisms obtain from the environment to carry out life processes and sustain life nutrient
heterotroph that consumes both plants and animals omnivore
symbiotic relationship in which one organism benefits at the expense of another organism parasitism

Symbiotic Relationships Crossword

Type
Crossword
Description

A relationship between two different species Symbiotic
Benefits both species Mutualism
A living thing that affects an environment Biotic Factors
Benefits one species, Harms the other Parasitism
Any non-living thing that affects an environment Abiotic Factors
Benefits one species, does not harm nor benefit the other Commensalism
An animal that hunts another animal Predator
The organism that is getting hunted Prey
Any living structure can also be called what Organism
An animal that eats plants only Herbivore
An animal that eats both meat and plants Omnivore
An animal that eats meat only Carnivore

Ecology crossword puzzle

Type
Crossword
Description

Organisms that make their own food autotroph
The variety of species in an ecosystem biodiversity
Organic matter that derives from living or recently living organisms biomass
The area on earth were organisms live biosphere
An organism that only gains energy from other animals carnivore
The maximum quantity of organisms in an area carrycapacity
All the organisms in a habitat working together community
An organism that gains energy from deceased organisms decomposer
Form of biology ecology
Representation of energy flow energy pyramid
A simple diagram that represents the consumption of organisms in an ecosystem foodchain
Complex combination of food chains foodweb
An organism that only gains energy from plants herbivore
Animal that gets it's energy from autotrophs heterotroph
An object or organism the limits the growth of a population limiting factor
Organism that eats meat and plants omnivore
amount of organisms in one species population
An organism that hunts another organism predator
An organism that is hunted by a predator prey

Population Ecology Crossword

Type
Crossword
Description

All the members of a species living in the same place at the same time. Population
_____________________ growth means that a population size grows at a faster rate when the population is larger. exponential
Birth rate minus death rate. growth rate
The maximum number of offspring that an organism can have in their lifetime. reproductive potential
The maximum population that the ecosystem can support indefinitely. Carry capacity
________________ occurs when individuals or populations attempt to use the same resources. competition
One organism that consumers another for energy. Predation
Symbiotic relationship where one benefits and the other is harmed. Parasitism
Symbiotic relationship where both benefit. Mutualism
Symbiotic relationship where one benefits and the other is unaffected. Commensalism
The relative distribution or arrangement of a population. Dispersion
The study of human population growth. Demography
Moving into an area. Immigration
Moving out of an area. Emigration
The distribution of ages in a specific population at a certain time. Age Structure
The percentage of members of a group that are likely to survive to any given age. Survivorship
The number of babies born each year per 1,000 women in a population. Fertility rate
The average number of years a person is to live. Life expectancy
What do you call a model that describes how changes in population size can occur. demographic transition
Land that can be used to grow crops arable
Term that means more people are living in cities than in rural areas. Urbanization

Symbiosis Relationship Crossword

Type
Crossword
Description

to gain help, profit, or an advantage from something Benefit
to spread or scatter over an area Distribute
plants or animals that grow on and feed off others Parasites
male flower cells, which often look like fine yellow powder Pollen
an animal that hunts and eats other animals to survive Predator
a place of safety, comfort, or protection Refuge
the way in which two or more living things or groups interact or deal with each other Relationship
of or relating to a beneficial relationship between different kinds of organisms Symbiotic
able to be hurt easily Vulnerable
a close relationship between two organisms and both benefit from each other. Example, trees and humans exchange oxygen and CO2 Mutualism
relationship between two organisms where one benefits and the other is not harmed. Example, organism lives on turtle’s shell, but the turtle is not harmed. Commensalism
A species (parasite) benefits from harming another species (the host). Example, mosquitos benefit from humans, but humans feel itchy when a mosquito bites them. Parasitism

ECOLOGY Crossword

Type
Crossword
Description

non living factors that effect an organism ABIOTICFACTOR
an organism that eats only meat CARNIVORE
the number of people, other living organisms, or crops CARRYINGCAPACITY
a group of interdependent organisms of different species growing or living together in a specified habitat COMMUNITY
an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material. DECOMPOSER
an animal that feeds on dead organic material DETRITIVORES
The ecological role and space that an organism fills in an ecosystem. ECOLOGICALNICHE
The progressive replacement of one dominant type of species or community by another in an ecosystem until a stable climax community is established. ECOLOGICALSUCCESSION
the scientific analysis and study of interactions among organisms and their environment ECOLOGY
to represent the flow of food energy and the feeding relationships between organisms FOODCHAIN
A graphical model showing the interconnecting food chains in an ecological community FOODWEB
an organism that eats only plants HERBIVORE
Non-native species disrupting and replacing native species INVASIVESPECIES
A factor present in an environment that controls a process, particularly the growth, abundance or distribution of a population of organisms in an ecosystem. LIMITINGFACTORS
both benefits MUTUALISM
an organism that eats plants and animals OMNIVORE
the amount of organisms of the same species in an area POPULATION
one is predator, one is prey PREDATION
an organism that makes its own food PRODUCER
A position in a food chain or Ecological Pyramid occupied by a group of organisms with similar feeding mode. TROPHICLEVEL
a biological community of interacting organisms and their physical environment ECOSYSTEM
the increasing concentration of toxic substances within each successive link in the food chain. BIOTICFACTORS
a species that has a disproportionately large effect on its environment relative to its abundance KEYSTONESPECIES
An organism that generally obtains food by feeding on other organisms CONSUMER