| A | B |
|---|
| spontaneous generation | the idea that life can spring from non living matter |
| metabolism | all the chemical activities of a living thing |
| ingestion | the taking in of food, eating |
| digestion | the process by which food is broken down into simpler subtances |
| respiration | the process by which libing things thke in ocygen and use it to produce energy |
| excretion | the process of getting rid of waste materials |
| life span | the macimum length of time a particular arganism can be expected to live |
| stimulus | a reaction to the enviorment |
| response | something to which an organism reacts |
| sexual reproduction | the way that most plants and animals reproduce, typically requires two parents |
| asexual reproduction | reproduction that requires olny one parent |
| homeostasis | the ability of an organisim to keep conditions inside its body the same, while conditions on the outside change |
| element | the simplist pure subtance that can not be broken down into a simpilar one |
| compound | two or more elements that are chemically combined |
| organic compound | a compound that contains the element carbon usuall combined with other elements |
| carbohydrate | the main source of engery for living things, made up of the elements carbon, hydrogen, and oxygen |
| fat | solid at room temp. engery rich compounds |
| oil | liquid at room temp. engery rich compounds |
| protein | organic compound made up of carbon, hydrogen, and oxygen |
| amino acid | the building block of proteins, 20 different kinds |
| enzyme | act as a catalyst a speical type of protine that regulates chemical activities in body |
| nucleic acid | very large compounds, store imfo. that helps body make protine it needs |
| DNA | also called deoxyribonucleic acid , stores the imfo needed to build a protein, carries messages about an organism that are passes from parent to offspring. |
| RNA | also called ribonucleic acid, reads the message carried by DNA and guids the protein making process. |
| inorganic compound | a compound that may or may not contain the element carbon |
| lipid | more proper scientific name for fats and oils |
| hormone | they stop and regulate many important body activties |
