VocabularyBasePractice words

Subject

Ecology and ecosystem vocabulary list

Built for middle and high school science students studying ecosystems, biomes, and biodiversity. Use this list to preview vocabulary before a unit, review for a quiz, or build sentences that describe how living things interact with their environment.

Practice these words ↗Take a quiz

Ecology and ecosystem vocabulary list

32 words
WordMeaningIn a sentenceSave
ecosystemnounThe living things in an area together with their nonliving surroundings and the ways they interact.The pond ecosystem includes insects, plants, water, and sediment.
habitatnounThe place and conditions in which an organism normally lives.The hedgerow provides habitat for nesting birds.
biodiversitynounThe variety of plant and animal life found in a particular habitat or the world.Rainforests contain an extraordinary level of biodiversity compared to most other ecosystems.
speciesnounA group of living organisms that share common characteristics and can interbreed to produce fertile offspring.Scientists discovered a new species of frog deep in the rainforest.
populationnounThe total number of people, or of a particular species, living in a given area.The population of the small town has grown by nearly a third in ten years.
communitynounA group of people who live in the same area or who share common interests, background, or identity.The local community came together to rebuild the playground after the storm.
biomenounA large natural community of plants and animals adapted to a specific climate and environment.The tundra is a biome characterized by cold temperatures and low vegetation.
organismnounAn individual living thing.A single bacterium is an organism.
producernounA person or company that makes a product, grows agricultural goods, or organizes the making of a film, show, or recording.The farm is a major producer of organic vegetables sold across the region.
consumernounA person who buys goods or services for personal use rather than for resale or manufacturing.Rising prices have made consumers more cautious about nonessential purchases.
decomposernounAn organism, such as a fungus or bacterium, that breaks down dead plant or animal matter.Decomposers in the soil recycle nutrients from fallen leaves back into the ecosystem.
food chainnounA sequence of organisms in an ecosystem, each dependent on the next as a source of food.In the ocean food chain, small fish eat plankton and are in turn eaten by larger predators.
food webnounA complex network of interconnected food chains showing the feeding relationships among many organisms in an ecosystem.The biology textbook included a diagram of a forest food web linking dozens of species.
predatornounAn animal that hunts and kills other animals for food.The lion is a top predator that hunts across the open savanna.
preynounAn animal that is hunted and killed by another animal for food.The zebra became easy prey once it strayed from the herd.
symbiosisnounA close, long-term relationship between two different organisms, typically benefiting at least one of them.The clownfish and the anemone live in a symbiosis that protects both from predators.
adaptationnounThe process of changing to become better suited to new conditions, or a modified version of an original work.The lizard's coloring is an adaptation that helps it hide from predators.
nichenounA specialized segment of the market for a particular kind of product or service.The small bakery found its niche selling gluten-free pastries to local cafes.
extinctionnounThe complete disappearance of a species or type of thing from existence.Habitat loss is pushing many rainforest species toward extinction.
endangeredadjectiveAt serious risk of extinction or of being harmed, lost, or destroyed.The endangered species list included several types of sea turtles found along the coast.
conservationnounThe careful protection and management of natural resources, wildlife, or historic sites to prevent loss or damage.The organization funds conservation projects to protect endangered rainforest habitats.
bioticadjectiveRelating to living organisms, especially in the context of an ecosystem.Sunlight, temperature, and biotic factors like predators all shape the forest ecosystem.
abioticadjectiveRelating to the non-living physical and chemical parts of an environment, such as water, light, or temperature.Rainfall and soil pH are abiotic factors that affect where certain plants can grow.
carrying capacitynounThe largest population an environment can support long-term with its available resources.Overgrazing eventually pushed the herd beyond the grassland's carrying capacity for the season.
migrationnounThe movement of people or animals from one region or habitat to another, often seasonally.The annual migration of wildebeest across the Serengeti attracts tourists from around the world.
pollinationnounThe process by which pollen moves from one flower part to another, enabling plants to reproduce.Cross-pollination between different apple varieties often produces a better harvest.
ecological footprintnounA measure of the resources and land needed to support a person's or population's lifestyle and absorb its waste.Driving less and eating locally can shrink a household's ecological footprint significantly.
keystone speciesnounA species that has a disproportionately large effect on its ecosystem relative to its abundance.Sea otters are a keystone species because they control the sea urchins that destroy kelp forests.
invasive speciesnounA non-native organism that spreads rapidly in a new environment and causes ecological or economic harm.The lake's native fish declined sharply after an invasive species was introduced accidentally.
sustainabilitynounThe capacity to maintain a process, resource, or system over time without depleting it or causing lasting damage.The company published a report detailing its progress toward greater sustainability in packaging and shipping.
natural selectionnounThe process by which organisms better suited to their environment tend to survive and pass on their traits.Darwin used natural selection to explain how species gradually change over generations.
competitionnounAn event or situation in which people or organizations compete against each other for a prize or goal.Hundreds of runners entered the competition hoping to qualify for the national finals.

Understanding biomes and ecosystems

A biome is a large region defined by its climate, plants, and animals, such as a desert or rainforest, while an ecosystem is the smaller web of living and nonliving things interacting within it. Vocabulary like biotic, abiotic, habitat, and niche describes how organisms fit into these systems and depend on one another for survival.

Species and biodiversity

Biodiversity refers to the variety of species living within an ecosystem, and a healthy balance often depends on relationships like predator and prey, symbiosis, and competition. Words such as endangered, extinction, and conservation describe threats to species and the efforts people make to protect them.

Frequently asked questions

What is ecology vocabulary used for?

Ecology vocabulary describes how living things interact with each other and their environment, covering ideas like food chains, habitats, and biodiversity.

What is the difference between a biome and an ecosystem?

A biome is a broad climate region such as a desert or tundra, while an ecosystem is the specific community of organisms and their environment within that region.