| A | B |
|---|
| habitat | physical location in which an organism lives |
| niche | includes food and other conditions necessary for a species' survival |
| symbiosis | close, long-term relationship between two or more species |
| transpiration | evapotation of water from plant leaves |
| food chain | model showing how engery flows through ecosystems |
| autotroph | organism that can manufacture its own food. |
| Energy flow from... | autotroph to heterotroph |
| Autotrophs use carbon dioxide during... | photosynthesis |
| After water evaporates, it enters the atmosphere as... | water vapor |
| Heterotrophs get nitrogen by... | eating autotrophs |
| First order consumers are... | herbivores |
| hetertrophs | cannot make their own food |
| decomposers | recycle nutrients |
| autotrophs | obtain energy from sunlight |
| trophic levels | include organisms that obtain energy in similar ways |
| food webs | show all possible feeding relationships. |
| Photosynthesis | plants take in CO2 |
| Respiration | animals exhale CO2 |
| Which fossil fuels are burned, atmospheric carbon dioxide levels increase. What happens to the total amount of carbon? Explain | That amount of carbon remains constant because the fossil fuels is converted to atmospheric carbon dioxide.It will be recycled through living organisms. |
| Explain why beak shaped birds is an adaptation to niche. | The shape of the bird's beak allows it to eat certain types of food, which is one of the defining characteristcs of an organism's niche. |
| In what form do humans obtain nitrogen? | Nitrogen is eaten as plant or animal protein. |
| Explain how lichens illustrate symbiosis. | Lichens are a partnership between fungi and algae or cyanobacteria. |
| How do decomposers recycle nutrients? | Decomposers break down organic material into reusable nutrients. As organisms decay, they release carbon to the atmosphere as cabon dioxide. This is recycled during photosynthesis. Decomposers also recycle nitrogen in wastes and organic remains. Someo f converted to gaseous nitrogen and is eventually returned to plants after being fixed by soil bacteria. |
