| A | B |
|---|
| requirements | things that are needed or depended upon |
| eventually | finally |
| nutrients | matter needed by plants and animals so they can live |
| predator | animal that hunts or kissls another for food |
| fungus | plant-like organism without leaves, flowers, or green coloring |
| climate | pattern of weather conditions in an area or region |
| extinction | end of or dying out of a type of plant or animal |
| protist | usually single-celled organisms that have both plant and animal characteristics |
| organisms | all living things, including all plants and animals |
| interactions | actions or influuences on each other |
| bacteria | very tiny single-celled organisms |
| ecosystem | living community of organisms and their physical environment |
| universe | all things that exist including our solar system and beyond |
| tropical | very humid and hot or having to do with the tropics |
| scientists | people with expert knowledge of science |
