||a group of similar cells that perform a common function
||a collection of tissues that carry out a specialized function of the body
||an organism that eats other organisms or organic matter
||a triangular diagram that shows an ecosystem's lost of energy which results as energy passes through the ecosystems food chain
||a group of organs that work together to perform body functions
||living thing. Some organisms are composed of a single cell. Other organisms are composed of many cells.
||an organism that eats animals
||the largest population that an environment can support at any given time
||group of living things of the same species that live in a specific area.
||all of the populations of species that live in the same habitat and interact with each other
||an organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients
||an organism that is killed and eaten by another organism
||a community of organisms and their abiotic, or nonliving, environment
||a large region characterized by a specific type of climate and certain types of plant and animal communities
||a diagram that shows the feeding relationships between organisms in an ecosystem
||a relationship between two organisms in which one organism benefits and the other is unaffected
||the part of Earth where life exists; includes all of the living organisms on Earth
||organisms that make their own food, usually by using the energy from sunlight to make sugar.
||the pathway of energy transfer through various stages as a result of the feeding patterns of a series of organisms
||a relationship in which two different organisms live in close association with each other
||when a long term change happens in two species because of their close interactions.
||describes the nonliving part of the environment, including water, rocks, light, and temperature
||describes living factors in the environment
||Each of several hierarchical levels in an ecosystem, comprising organisms that share the same function in the food chain and the same nutritional relationship to the primary sources of energy
||a relationship between two species in which both species benefit
||the study of the interactions of living organisms with one another and with their environment
||the smallest functional and structural unit of all living organisms; usually consists of a nucleus, cytoplasm, and a membrane
||the capacity to do work
||an organism that kills and eats all or part of another organism
||an organism that eats only plants
||an organism that eats both plants and animals
||An animal that feeds on carrion, dead plant material, or refuse.
||a relationship between two species in which one species, the parasite, benefits from the other species, the host, which is harmed