| A | B |
| An area where the climate determines the kinds of plants and animals that live there | biome |
| The six levels of environmental organization are biosphere, biome, ecosystem, community, population, and... | individual |
| abiotic | nonliving |
| Grass is eaten by a prairie dog. The prairie dog is eaten by a coyote. This is an example of... | a food chain |
| One food web arrow goes from a prairie dog to a coyote, showing that... | the coyote eats the prairie dog |
| The largest population an environment can support | carrying capacity |
| One type of competition involves individuals competing for resources. The other involves competition between different | populations |
| A bird eats a worm. Which of the following is the predator? | bird |
| Blending in with the background | camouflage |
| What happens when different kinds of trees need the same space? | competition |
| What organisms make food from sunlight? | producers |
| In which relationship do living things help each other? | mutualism |
| Which of the following is a relationship where one organism benefits and the other is not affected? | commensalism |
| An organism that kills and eats another organism | predator |
| In a food web, arrows point in just one direction because they show | how energy flows to the animal that is eating |
| Two members of the same species fight over who gets a certain food. This is an example of | competition. |
| Three organisms on the food web have arrows pointing away from them and no arrows pointing toward them. They are | producers |
| Four organisms on the food web have arrows pointing toward them but no arrows pointing away from them. This is because | nothing eats them |
| Herbivores, carnivores, and omnivores are all | consumers |
| Which diagram shows an ecosystem’s loss of energy? | energy pyramid |
| What kind of elk do wolves kill? | the old, injured, and diseased |
| biotic | living |
| Organisms that can make their own food from sunlight | producers |
| In which type of symbiosis do organisms help each other? | mutualism |
| a community of organisms and their abiotic environment | ecosystem |
| Animals that eat only plants | herbivores |
| Consumers that eat other animals | carnivores |
| A diagram showing the feeding relationships between living things in an ecosystem | food web |
| A diagram showing how energy is transferred from one living thing to another | food chain |
| Plants, animals, and all living things are ____________________ parts of the environment. | biotic |
| All the populations of living things in the same place | community |
| Two or more individuals of the same kind living together | population |
| Some desert plants would not survive in a(n) ____________________ that receives a lot of snow. | biome |
| Populations of organisms that live in and interact in a particular area | community |
| An area where the climate determines the kinds of plants and animals that live there | biome |
| The part of Earth where life exists | bioshpere |
| The study of interactions between living things and their environment | ecoology |
| The largest population that an environment can support | carrying capacity |
| The relationship between two organisms in which one organism benefits and the other is unaffected | commensalism |
| a relationship in which two different organisms live in close association with each other | symbiosis |
| a relationship between two species in which one species benefits and the other is harmed | parasitism |