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RISD 5th 1st 9 wks.

science vocab. RISD 1st 9 wks.

Science VocabularyMeaning
niche the position or function of an organism in a comunity of plants or animals
food web a series of organisms related by predator-prey relationships
adaptation a change in structure or habits by which a species improves its condition in relation to its environment
ecosystem a system formed by the interaction of a community of organisms with their environment
migration moving from place to place
decomposer an organism, usually a bacterium or fungus, that breaks down the cells of dead plants and animals into simpler substances
producer an organism, as a plant, that is able to produce its own food from inorganic substances
consumer an organism, usually an animal, that feeds on plants or other animals.
roots The usually underground portion of a plant that lacks buds, leaves, or nodes and serves as support, draws minerals and water from the surrounding soil, and sometimes stores food
stems A slender stalk supporting or connecting another plant part, such as a leaf or flower
leaves any similar or corresponding lateral outgrowth of a stem
photosynthesis The process in green plants and certain other organisms by which carbohydrates are synthesized from carbon dioxide and water using light as an energy source. Most forms of photosynthesis release oxygen as a byproduct.
cell a usually microscopic structure containing nuclear and cytoplasmic material enclosed by a semipermeable membrane and, in plants, a cell wall; the basic structural unit of all organisms
nucleus a specialized, usually spherical mass of protoplasm encased in a double membrane, and found in most living cells, directing their growth, metabolism, and reproduction
cytoplasma The protoplasm outside the nucleus of a cell
membrane the thin, limiting covering of a cell or cell part
organelle a specialized part of a cell having some specific function; a cell organ.
muscular system The bodily system that is composed of skeletal, smooth, and cardiac muscle tissue and functions in movement of the body or of materials through the body, maintenance of posture, and heat production
nervous system system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia
organs A differentiated part of an organism, such as an eye, wing, or leaf, that performs a specific function
tissue a group of similar cells acting together to perform a specific function in the body
inherited trait tending to occur among members of a family usually by heredity
learned behavior knowledge gained by study, instruction, or experience
instinct An inborn pattern of behavior that is characteristic of a species and is often a response to specific environmental stimuli
metamorphosis a profound change in form from one stage to the next in the life history of an organism, as from the caterpillar to the pupa and from the pupa to the adult butterfly
Created by: sgrubb