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Chapter3 study guide
Study guide
| Question | Answer |
|---|---|
| List the levels of organization in order from largest to smallest | Biosphere, Biome, Ecosystem, Community,Population, Individual |
| What methods do ecologists use? There are 3. | Observing, Experimenting, and Modeling |
| What type of organism would be at the beginning of the food chain? | Producers |
| What organism uses energy to make its own food? | Producer |
| What is the total amount of living tissue within a given trophic level? | Biomass |
| What animals eat both producers and consumers? | Omivores |
| A snake that eats a frog that has eaten an insect that fed on a plant is a ______? | Tertiary producer |
| What are the 3 types of pyramids & Define? | Energy pyramid- Shows the relative amount of energy available at each trophic level. Biomass pyramid- Represents the amount of living organic matter at each trophic level Ecological pyramid- Shows the relative amount of energy or matter |
| What is the process by which bacteria convert nitrogen gas in the air to ammonia? | Nitrogen fixation |
| The movements of energy and nutrients through living systems are different because? | Energy flows in one direction and nutrients recylce. |
| The branch of biology dealing with interactions among organisms and between organisms and their environment is called? | Ecology |
| What are the combined portions of Earth called in which all living things exist? | Biosphere |
| All the members of a particular species that live in the same area are called? | Population |
| Green plants are what? | Producers |
| What is the original source of almost all the energy in most ecosystems? | Green plants |
| An organism that can not make its own food? | Heterotrophs |
| Organisms that obtain nutrients by breaking down dead and decaying plants and animals are called? | Detrivores |
| What is an organism that feeds only on plants called? | Herbivore |
| All interconnected feeding relationships in an ecosystem make up a food? | Food web |
| The repeated movement of water between Earths surface and the atmosphere is called? | The water cycle |
| Organisms need nutrients in order to? | Survive |
| Organisms in the oceans with the smallest total biomass are most likely the _____? | Producers |
| Water can enter the atmosphere through the process of evaporation and _______. | Transpiration |
| Plant eating animals such as cows are called _______. | Herbivores |
| Only about _____ percent of the energy in a trophic level is available to organisms at the next level. | 10 |
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Imani_Leshai