| A | B |
| cellular respiration | the process in which cells break down food to release energy |
| parasite | an organism that absorbs food from another organism and harms it |
| excretion | the process by which organisms get rid of wastes |
| development | the changes that occur as an organism grows |
| protist | an organism that usually is one-celled and has plant-like or animal-like properties |
| kingdom | one of the five groups into which organisms are classified |
| algae | protists that make their own food and usually live in water |
| cilia | Hair-like structures that help some one-celled organisms move |
| flagella | Whip-like tails that help some one-celled organisms move. |
| reproduction | the process by which organisms produce offspring |
| protozoan | a protist that has animal-like qualities |
| pseudopod | part of some one-celled organisms that sticks out like a foot to move the cell along |
| decompose | to break down or decay matter into simpler substances |
| fungus | an organism that usually has any cells and decomposes material for its food |
| moneran | an organism that is one-celled and does not have organelles |
| digestion | the process by which organisms break down food |