Type
Crossword
Description

A biome consisting of grasslands with little rainfall TEMPERATEGRASSLAND
When two individuals interact, one benefits and the other is neither harmed nor benefits COMMENSALISM
The type of ecosystem services that includes fishing, hunting, and camping RECREATION
Biome characterized by wet and dry season and grasses, shrubs, and small trees SAVANNA
Diversity within individual members of a species GENETICDIVERSITY
When a new species is formed SPECIATION
When animals use oxygen and glucose to produce carbon dioxide, energy, and water RESPIRATION
Another word for consumer is _____ HETEROTROPH
An organism that produces its own food with photosynthesis PRODUCER
Organisms that eat only producers HERBIVORES
Animals that eat only consumers CARNIVORES
A group of organisms that can mate and produce fertile offspring SPECIES
An environment that has been cleared YOUNG
Characterized by moderate temperatures, clumped vegetation, and periods of dryness CHAPARRAL
Ecosystem service that includes fish, nuts, fruits, and vegetables FOODPRODUCTION

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 Crossword

Type
Crossword
Description

an individual living thing composed of one or more cells Organism
organism that must obtain nutrients and energy from eating other organisms consumer
another term for producer autotroph
The complete destruction of every member of a species extinction
energy links between different organisms in an ecosystem food chain
very similar organism that can interbreed and produce fertile offspring species
a group of organisms of the same species living in an ecosystem population
organism that breaks down chemical compounds made by living things decomposer
organism that consumes only animal tissue consumer
the second level of consumer that eats herbivores secondary consumer
the place organisms live habitat
the non-living components of an ecosystem abiotic factors
the study of the relationships and interactions of living things with their environment ecology
animals that hunt for other living animals predator
organism that can produce their own food through the process of photosynthesis producer
the primary level of consumer that eats producers primary consumer
the living components of an ecosystem biotic factors
a community of organisms in an environment ecosystem
another term for consumer heterotroph
the animal hunted by other animals prey
the overlapping of food chains in an ecosystem food web
organism that consumes only plant tissue herbivore
organism that must obtain nutrients and energy from eating other organisms consumer
the part of the Earth in which life can exist biosphere
the third level of consumer, generally a carnivore tertiary consumer
organism that consumes both plant and animal tissue omnivore
the role of an organism and what it needs to survive in its ecosystem. niche
the interaction between two organisms that require the same resource competition
all living components of an ecosystem community
a major ecological community occupying a large geographic region biome

Ecosystems Crossword

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 Unit Crossword

Type
Crossword
Description

Any individual living thing. ORGANISM
The individuals of a species that live in the same area. POPULATION
Collection of all of the different populations that live in one area. COMMUNITY
Collection of organisms and nonliving things. ECOSYSTEM
Regional or global community of organisms characterized by the climate. BIOME
Nonliving factor in an ecosystem. ABIOTIC
Process by which light energy is converted to chemical energy. PHOTOSYNTHESIS
Organism that only plants eat. HERBIVORS
Organism that obtains energy by eating only animals. CARNIVORS
Organism that eats plants and animals. OMNIVORS
Living things such as plants, animals, fungi, and bacteria. BIOTIC
Consumer that eats one type of organism. SPECIALISTS
Species that does not rely on a single source of prey. GENERALISTS
Ecological relationship in which two organisms attempt to obtain the same resource. PREDATION
Organisms that obtains its energy from abiotic sources. PRODUCERS
Organisms that obtains its energy and nutrients by eating other organisms. CONSUMERS
Detritivore that breaks down organic matter into simpler, compounds, returning nutrients back into an ecosystem. DECOMPOSERS
Level of nourishment in a food chain. TROPHICLEVEL
Organism that has an unusually large effect on its ecosystem. KEYSTONESPECIES
Model that shows the complex network of feeding relationship within ecosystems. FOODWEB

Biology Crossword

Type
Crossword
Description

The abiotic factors of the environment include light, temperature, and atmospheric gases. Abiotic
A microorganism that uses only inorganic materials as its source of nutrients; carbon dioxide is the autotroph's sole carbon source. Autotroph
a large, distinct, easily differentiated community of organisms arising as a result of complex interactions of climatic factors, flora, fauna, and substrate; usually designated according to kind of vegetation present, such as tundra, coniferous forest, deciduous forest, or grassland. Biome
pertaining to all plant and animal life or living organisms Biotic
All regions in the world where living organisms are found. Biotsphere
any animal that eats primarily flesh, particularly mammals of the order Carnivora, which includes cats, dogs, bears, and others Carnivore
A symbiotic relationship in which one species derives benefit and the other is unharmed; for example, Entamoeba coli in the human large intestine. Commensalism
A group of people living in the same locality and under the same government. Community
The process by which the activity or presence of one substance interferes with, or suppresses, the activity of another substance with similar affinities Competition
any organism which consumes other organisms to gain food resources. Macro consumers (phagotrophs) are chiefly animals which ingest other organisms or particulate organic matter (detritus) Consumer
the fundamental unit in ecology, comprising the living organisms and the nonliving elements interacting in a certain defined area. Ecosystem
power that may be translated into motion, overcoming resistance or causing a physical change; the ability to do wor Energy
An ecological pyramid illustrating the energy flow within an ecosystem. Energy pyramid
the interrelation of various species of plants, animals, fungi, and microorganisms that are connected to each other as food and food consumers Food chain
A diagram depicting those organisms that eat other organisms in the same ecosystem. In some cases, the organisms may already be dead. Food web
the environment in which an animal or plant normally lives or grows Habitat
An animal that eats only vegetation. Herbivore
living organism that obtains its energy from carbohydrates and other organic material. All animals and most bacteria and fungi are heterotrophic Heterotroph
An interaction between two species that benefits both. Individuals that interact with mutualists experience higher success than those that do not. Mutualism
The unique role or way of life of a plant or animal species. Niche
the passage of a nutrient through an ECOSYSTEM so that it eventually becomes reavailable to the PRIMARY PRODUCERS. Nutrient system
an organism feeding on both animals and plants. For example, humans have teeth adapted to chewing both types of material Omnivore
symbiosis in which one population (or individual) adversely affects another, but cannot live without it. Paratism
the individuals collectively constituting a certain category or inhabiting a specified geographic area. Population
An organism that lives by preying on other organisms. Predation
An organism, such as a green plant, that produces its own food through photosynthesis or chemosynthesis and constitutes the first trophic level in a food chain Producer
in parasitology, the biologic association of two individuals or populations of different species Symbiosis
The position of a species or a group of species within a food chain or food web. Trophic level

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

Ecosystems and Biomes Crossword

Type
Crossword
Description

organisms that make their own food producer
organism that eats producers herbivore
Another name for herbivore primary consumer
organism that eats other consumers secondaryconsumer
a secondary consumer can be a carnivore or ______________ omnivore
All of the biotic and abiotic factors in an environment make up the ecosystem
a warm biome that gets little to no rainfall desert
biome with layer of permafrost below soil tundra
biome with grasses and low shrubs, but no trees and little rain grassland
biome with mostly evergreen trees taiga
biome with distinct seasons and a variety of trees and animals temperateforest
biome with large rainfall and warm temperatures tropicalrainforest
living part of an ecosystem bioticfactor
non-living part of an ecosystem abioticfactor
amount of energy passed from one trophic level to the next tenpercent
model that shows predator-prey relationships between a few organisms in an ecosystem foodchain
model that shows many inter-relationships between organisms in an ecosystsm foodweb

Environmental Science Crossword

Type
Crossword
Description

Number of deaths. Death Rate
Number of births. Birth Rate
Resources that can be replenished at rate Renewable
Limiting the consumption of products, decreases amount of trash & resources needed overall Reduce
Taking old products and using them again, keep waste out of landfills Reuse
Resources that break down over shorter amts of time Degradable
Resources that virtually never break down & have indefinite life spans Nondegradable
variety of species living in area Biodiversity
lobby to preserve lands & resources so they can't be used by humans Preservationists
explanation that has been tested & supported by wide variety of observations & that new info in unlikely to discredit theory
organic way of testing hypotheses Experiment
interdisciplinary field of study of interactions in the environment Environmental Science
resources existing in nature Natural Resources
system that produces, distributes, & consumes goods/services economy
Converting the energy in sunlight into food Photosynthesis
living biotic
non living abiotic
Organisms that preform photosynthesis First level of food chain / web Producer
organisms that must eat other organisms for energy Consumer
eats producers primary comsumer
Eats Primary consumers Secondary Consumer
Eats Secondary consumers Tertiary Consumer
Eats both plants and animals Omnivore
development of communities in a previously lifeless area without soil Primary Succession
Collection of individuals of same species Population
Group of populations Community
Organization of living things that consists of all living and nonliving things in the area as well as interactions Ecosystem
Combination of all biomes, highest level of organization of living things Biosphere
Organisms that eat other organisms Consumer
Organism that breaks down remains of organisms into simpler, inorganic substances Decomposer
services we get from functioning ecosystems like clean water, soil, air, habitat, timber Ecosystem Services
Dry weight of all living things on earth biomass
Deoxyribonucleic acid; found in nucleus of cell, and essential for transmission of genetic info DNA
essential component of proteins amino acids
roll organism play in environment Niche
one species benefits, other is harmed Parasitism
one species benefits & other is unaffected Commensalism
Both species benefit Mutualism
Neither species benefits Competition
Neither species benefits or is harmed Neutralism

Ecology Crossword

Type
Crossword
Description

A series of of steps how organisms transfer food into energy Food chain
Network of animels feeding habits Food web
The steps in a food web/chain Trophic levels
Sunlight/chemical energy converted into forms that cells can use Autotrophs
The study of interaction between organisms and their environment. Ecology
A consumer that eats Meat. Carnivore
An organism that gets energy by breaking down the remains of dead organisms. Decomposer
Eating something Consumer
Eats plants Herbivore
None living part of a environment Abiotic factor
Population as a whole Community
A group of individuals of the same species. Population
Living factors in the environment. Biotic factor
Place on earth where life is Biosphere
Similar organisms that breed/produce Species
Ecosystem that has close to the same climates and organisms. Biome
Living in a place together with their physical environment is known as what? Ecosystem
Eats both plants and animals Omnivores
Eats already dead or found animals Scavengers
organisms in an ecosystem that produce biomass from inorganic compounds Primary producer
Why are plants green? Photosynthesis
of organic compounds by bacteria or other living organisms using energy derived from reactions involving inorganic chemicals, typically in the absence of sunlight. Chemosynthesis
an organism deriving its nutritional requirements from complex organic substances. Heterotroph
an animal that feeds on dead organic material, especially plant detritus. Detritivore

Ecology Terms Crossword

Type
Crossword
Description

The non-living components in the environment; including both physical and chemical abiotic
The biological or living components of the biosphere Biotic
A group of individuals of the same species occupying a given area at a certain time population
The populations of all species that occupy a habitat Community
A community and its physical and chemical environment Ecosystem
The number of species in an ecosystem Biodiversity
A sequence linking organisms that feed on each other Food Chain
An autotroph; an organism that makes its own food producer
an organism that must eat to survive Consumer
A species that is sensitive to small changes in the environment Indicator species
an animal that eats only plants herbivore
an animal that feeds only on other animals carnivore
Waste from plants and animals, including their dead remains Detritus
An organism that feeds on detritus decomposer
a place or type of environment with conditions suitable for the survival of an organism or population habitat
A layer in the stratosphere that helps to screen out UV radiation ozone