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Cells & Heredity
Term | Definition |
---|---|
inherited characteristics (traits) | determined before birth and cannot be permanently changed |
acquired characteristics (traits) | features that result from experience and the influence of the environment |
inherited behavior | behaviors (such as instincts) that do not have to be taught and are determined by heredity |
learned behavior | behaviors carried out by an animal or human based on experience |
heredity | the passing of traits, or features, from parents to offspring through genes |
genes | carry the information or coded messages that determines your traits that are passed on to you from your parents |
cell | smallest unit of living matter; the building blocks of all living things |
unicellular organism | an organism which contains one cell and is able to carry out all life functions within that one cell |
multicellular organism | an organism which contains more than one cell that take care of the various life functions of the organism |
tissue | groups of similar cells working together to carry out a certain job |
organ | a group of tissues that work together doing a certain job |
organ system | a group of organs working together to carry on life functions |
organism | any living thing that can carry out its life activities on its own |
dominant gene | considered the "stronger" gene; overpowers "weaker" genes and are always present in the offspring |
recessive gene | considered the "weaker" gene and will only pass on that trait if two "weaker" genes are present in the offspring |
oxygen, water, food, and a place to live | living things need these four things in order to survive |
grow and develop, consume/make food, get rid of wastes, respond to their environment, reproduce | five functions of living things |
organizational chart for cells to biosphere | cells- tissues- organs- organ system- organism- population- community- ecosystem- biosphere |
examples of unicellular organisms | bacteria, yeast, amoeba, paramecium, protist |