Type
Crossword
Description

This crossword contains the following questions and answers:

Energy from the sun enters the ecosystem and a plant uses the sunlight to make sugar molecules. Photosynthesis
An organism that makes its own food. Producer
An organism that gets its energy by eating other organisms. Consumer
An organism that gets its food by breaking down dead organisms. Decomposer
The process of breaking down food to yield energy. Cellular Respiration
A sequence in which energy is transferred from one organism to the next as each organism eats another organism. Food Chain
Feeding relationships that are possible in an ecosystem. Food Web
Each step through which energy is transferred in a food chain. Trophic Level
A process in which nitrogen is cycled between the atmosphere, bacteria, and other organisms. Nitrogen Cycle
A few species of bacteria that can fix atmospheric nitrogen into chemical compounds. Nitrogen Fixing Bacteria

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Ecosystems Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

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

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How Ecosystems Work Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

organism that get their energy by eating other organisms Consumer
consumers that get their food by breaking down dead organisms Decomposer
the process of breaking down food to yield energy Cellular Respiration
a sequence in which energy is transferred from one organism to the next as each organism eats another organism Food Chain
shows many feeding relationships that are possible in an ecosystem Food Web
each step through which energy is transferred in a food chain Trophic Level
a process by which carbon is cycled between the atmosphere, land, water, and organisms Carbon Cycle
a process in which nitrogen is cycled between the atmosphere, bacteria, and other organisms Nitrogen Cycle
the movement of phosphorus from the environment to organisms and then back to the environment Phosphorus Cycle
bacteria that convert atmospheric nitrogen into ammonia Nitrogen-fixing Bacteria
a gradual process of change and replacement of some or all of the species in a community Ecological Succession
the type of succession that occurs on a surface where no ecosystem existed before, such as on rocks or sand dunes Primary Succession
the more common type of succession; occurs on a surface where an ecosystem has previously existed Secondary Succession
the first organism to colonize any newly available area and begin the process of ecological succession Pioneer Species
a final and stable community Climax Community

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Ecology Vocabulary Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

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

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Biogeochemical Cycles Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

Our atmosphere contains 78% free _________________________. Nitrogen
Animals need nitrogen to produce ______________________. Proteins
What molecule is produced when nitrogen is fixed? Ammonia
Animals get nitrogen into their systems by eating _______________. Plants
Large organic molecule containing nitrogen that contains your genetic information. DNA
Prokaryote responsible for "fixing" nitrogen. Bacteria
_________________________ occurs when fertilizer runoff causes excess algae and water weeds. Eutrophication
Process where water "evaporates" from plants. Transpiration
What "powers" the water cycle? Sun
Rain, snow, sleet, or hail. Precipitation
The downward entry of water into the soil or rock surface. Infiltration
Process by which water changes from a liquid to a gas. Evaporation
Oats, peas, beans, corn Legumes
Helps plants to grow. Fertilizer
Bacteria that break down organic matter. Decomposers
Process by which water vapor turns into liquid water. Condensation

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Ecology, Energy Flow, Human Impact Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

the branch of biology that deals with the relations of organisms to one another and to their physical surroundings. Ecology
a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. Species
a group of individuals of the same species inhabiting the same area. Population
an association of populations of two or more different species occupying the same area in a particular time. Community
a biological community of interacting organisms and their physical environment. Ecosystem
organisms that can make their own energy through biochemical processes, also known as autotrophs producer
organisms of an ecological food chain which receive energy by consuming other organisms, also known as heterotrophs consumer
A process in which organisms, with the aid of chlorophyll (green plant enzyme), convert carbon dioxide and inorganic substances into oxygen and additional plant material, using sunlight for energy. Photosynthesis
an animal that gets its energy from eating plants, and only plants Herbivore
an organism that derives its energy and nutrient requirements from a diet consisting mainly or exclusively of animal tissue Carnivore
a group of animals that derive energy and nutrients from a variety of food sources, such as plants and animals, as well as fungi, algae and bacteria. omnivore
organisms that break down dead or decaying organisms, and in doing so, they carry out the natural process of decomposition decomposer
A succession of organisms in a community that are linked to each other through the transfer of energy and nutrients, beginning with an autotrophic organism such as a plant and continuing with each organism being consumed by one higher in the chain food chain
system of interlocking and interdependent food chains food web
any class of organisms that occupy the same position in a food chain, as primary consumers, secondary consumers, and tertiary consumers. Only 10% of the energy is transferred from each level. Trophic level
the mass of living biological organisms in a given area or ecosystem at a given time biomass
the state of the atmosphere at a place and time as regards heat, dryness, sunshine, wind, rain, etc. weather
the weather conditions prevailing in an area in general or over a long period. climate
A term used to describe the heating of the atmosphere owing to the presence of carbon dioxide and other gases. greenhouse effect
the natural home or environment of an animal, plant, or other organism. habitat
the ecological role of an organism in a community especially in regard to food consumption niche
Destruction of the upper atmospheric layer of ozone gas, caused by substances formed from breakdown of ozone depleting substances, known as chlorofluorocarbons, or CFCs ozone depletion
he act or result of cutting down or burning all the trees in an area, reducing the number of organisms able to carry out photosynthesis deforestation
rainfall made sufficiently acidic by atmospheric pollution that it causes environmental harm, typically to forests and lakes acid rain
a plant, fungus, or animal species that is not native to a specific location invasive
the accumulation of substances, such as pesticides, or other chemicals in an organism bioaccumulation
the increasing concentration of a substance, such as a toxic chemical, in the tissues of organisms at successively higher levels in a food chain biomagnification

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Photosynthesis and Cellular Respiration Crossword

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Description

This crossword contains the following questions and answers:

The first step of Cellular Respiration where glucose is broken in half and 2 ATP energy units are released. Glycosis
Short for Adenosine Triphosphate. It is the energy that is released when the mitochondrion breaks down the sugars you have eaten. ATP
The second of two major stages in photosynthesis, involving atmospheric CO2 fixation and reduction of the fixed carbon into carbohydrate. Calvincycle
The steps in photosynthesis that occur on the thylakoid membranes of the chloroplast and that convert solar energy to the chemical energy of ATP and NADPH, evolving oxygen in the process. Lightreactions
The small openings on the undersides of most leaves through which oxygen and carbon dioxide can move Stomata
Organism that can capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds; also called a producer. Autotroph
An organelle inside a plant cell only where photosynthesis takes place Chloroplast
An organism that must eat plants or other animals for food heterotroph
An organelle inside an animal AND plant cell where cellular respiration takes place Mitochondria
The process by which plants use carbon dioxide + energy from the sun to create sugars and oxgen Photosynthesis
Produces 36 ATP energy units for each sugar molecule broken up Krebscycle
The process that takes place inside all eukaryotic cells (both plants and animals) that breaks down sugars to produce energy in the form of ATP Cellularrespiration
Cellular respiration that takes place when there is oxygen Aerobicrespiration
Cellular respiration that takes place where there is NO oxygen anaerobicrespiration
Sugars produced by photosynthesis Glucose
Primary light absorbing pigment in autotrophs chlorophyll

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Photosynthesis Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugar and starches photosynthesis
organism that can capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds; also called a producer autotroph
the steps in photosynthesis that occur on the thylakoid membranes of the chloroplast and that convert solar energy to the chemical energy of ATP and NADPH, evolving oxygen in the process light reactions
a green pigment found in the chloroplasts of plants, algae, and some bacteria chlorophyll
an organism that obtains organic food molecules by eating other organisms or their byproducts and that cannot synthesize organic compounds from inorganic materials heterotroph
specialized ground tissue that makes up the bulk of most leaves; performs most of a plant's photosynthesis mesophyll
the second of two major stages in photosynthesis (following the light reactions), involving atmospheric CO2 fixation and reduction of the fixed carbon into carbohydrate. Calvin Cycle
a colored chemical compound that absorbs light, producing color pigment
A flattened membrane sac inside the chloroplast, used to convert light energy into chemical energy. thylakoid
granum (grana) a stack of thylakoids in a chloroplast granum
The fluid of the chloroplast surrounding the thylakoid membrane; involved in the synthesis of organic molecules from carbon dioxide and water. stroma
large protein that uses energy from H+ ions to bind ADP and a phosphate group together to produce ATP ATP synthase
The second of two major stages in photosynthesis, involving atmospheric CO2 fixation and reduction of the fixed carbon into carbohydrate. These reactions are also called the Calvin Cycle dark reactions
is the set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products. Cellular respiration
a compound composed of adenosine and three phosphate groups that supplies energy for many biochemical cellular processes by undergoing enzymatic hydrolysis. ATP

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Biology-Ecology Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

A science that deals with the relationships between groups of living things and their environments Ecology
The place or type of place where a plant or animal naturally or normally lives or grows Habitat
Any living component that affect another organism Biotic Factor
Drawing from natural ecosystems which are defined as the network of interactions among organisms and between organisms and their environment Ecological Model
Non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems Abiotic Factor
The function or position of a species within an ecological community Niche
An autotrohpic organism that serves as a source of food for other organisms in a food chain. Producer
A heterotrophic organism that feeds on other organisms in a food chain. Consumer
The total mass of living matter within a given unit of environmental area. Biomass
An animal that feeds on plants. Herbivore
An animal that feeds on flesh. Carnivore
An animal that eats both plants and animals. Omnivore
an animal that feeds on dead organic material detritivore
break down dead or decaying organisms decomposer
the position an organism occupies in a food chain trophic level
series of organisms each dependent on the next as a source of food food chain
a system of interlocking and interdependent food chains food web
the flow of chemical elements between living organisms and the enviroment biogeochemical cycle
when a plant absorbs water in its roots transpiration
the chemical processes by which atmospheric nitrogen is assimilated into organic compounds nitrogen fixation
the process of ammoniating; decomposition with production of ammonia ammonification
biological oxidation or ammonium to nitrite followed by the oxidation of the nitrite to nitrate nirtification
the loss or removal of nitrogen or nitrogen compounds denitrification
the trapping of the sun's warmth in a plants lower atmosphere greenhouse effect
an organism that is able to form organic substances from simple inorganic substances autotroph
an organism deriving its nutritional requirements from complex organic substances heterotroph
process by which plants use sunlight to synthesize foods from carbon dioxide and water photosynthesis

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Aquatic Biome Crossword

Type
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Description

This crossword contains the following questions and answers:

Has cool temperatures, 5-16 ft. of rain. Consist of Pine, Redwood, and Sitka Spruce Temperate Rain Forest
Receives the most rain out of all the biomes. Tropical Rain Forest
Grassy plain in tropical and subtropical regions with few trees. Savanna
Hot summers, cold winters. 10 to 35 inches of rain. Temperate Grassland
Shrubland or heatland plant community found primarily in the U.S. state of California. Chaparrel
Constitute a large domain of prokaryotic micro-organism. Eubacteria
Any Eukaryotic organism that includes micro-organisms such as yeast & molds Fungus
action or process of adapting or being adapted Adaptation
Constitute a domain & kingdom of single-celled micro-organisms Archaebacteria
Place where an organism usually lives. Habitat
Large region characterized by a specific type of climate & certain types of plants & animal communities. Biome
Process in which different kinds of living organisms are thought to have developed & diversified from earlier life forms. Evolution
Process of breaking down food to yield energy. Cellular Respiration
Sequence in which energy is transferred from 1 organism to the next. Food Chain
Shows many feeding relationships that are possible in an ecosystem. Food Web
One of the steps in a food chain or food pyramid. Tropic Level
refers to the weather conditions, such as temperature, precipitation, humidity, and winds, in an area over a long period of time Climate
the distance north or south of the equator and is measured in degrees Latitude
the height of an object above sea level Altitude
this layer consists if the tallest trees, which reach heights of 60 to 70m Emergent Layer
considered the primary layer of the rain forest Canopy
a plant that uses another plant for support, but not for nourishment Epiphyte
Very little light reaches this layer Understory
a forest that is characterized by trees that shed their leaves in the fall Temperate Deciduous Forest
the northern coniferous forest that stretches in a broad band across the Northern Hemisphere just below the Arctic Circle Taiga
areas that have widely scattered vegetation and receive very little rain Desert
biome that is in northern arctic regions Tundra
in arctic regions, the permanently frozen layer of soil or subsoil Permafrost
Succession that begins in an area that previously did not support life. Primary Succession
Plant uses sunlight to make sugar for food. Photosynthesis
Bacteria that convert atmosphere nitrogen into ammonia. NItrogen-fixing bacteria
An organism that makes it's own food. Producer
Anything living. Organism
Organism that belongs to the kingdom protistia. Protist
Get their food by breaking down dead organisms. Decomposer
Organisms that get their energy from other organisms. Consumer
Animal that doesn't have a backbone. Invertebrate
Animals that have a backbone. Vertebrate.
A community of organisms and their abotic environment. Ecosystem
The tidal mouth of a large river, where the tide meets the stream. Estuary
The small and microscopic organisms drifting or floating in the sea or freshwater. Plankton

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Chapter 2: Principles of Ecology Crossword

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Crossword
Description

This crossword contains the following questions and answers:

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

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