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Grade 9 Science 4 RJ
RJ's Study Stack for Ecology
| Question | Answer |
|---|---|
| Decomposer | an organism that breaks down organic matter into basic substances |
| Carrying capacity | the maximum number of organisms that can be put into place |
| Food chain | a series organisms that are dependent on the next as a source of food |
| Parasite | an organism that feeds off of a host and harms the host |
| Scavenger | an organism that eats dead bodies |
| Hydrosphere | what makes up the earth’s water layer |
| Ecological pyramids | a picture of either energy or biomass relationships in an ecosystem |
| Nitrogen | an element which in organisms is important for building molecules |
| Bioaccumulation | how much of a toxic substance builds up in an organism |
| Sustainable | an ecological balance of organisms in their environment |
| Carnivore | an organism that eats animals |
| Community | 2 or more populations of different species in the same area |
| Bio amplification | increase in concentration of a toxin at each new level of the food chain |
| Lithosphere | the crust of the earth |
| Optimum range | where a species has its most preferred location |
| Extinct | no organisms of that species remain alive |
| Threatened | species that are vulnerable towards becoming extinct |
| Autotroph | A producer. This organism feeds itself from simple chemical substances |
| Nitrates | an inorganic substance used in fertilizers |
| Heterotrophs | A consumer. Needs to feed off of other organisms |
| Biodiversity | the variety of life in an ecosystem |
| Niche | what an organism needs to do. How an organism makes it living. |
| Biotic potential | the maximum rate that an organism can reproduce at. |
| Trophic levels | organisms in a food chain |
| Abiotic | the non-living parts of an ecosystem |
| Habitat | where an organism lives. |
| Producer | eats by using photosynthesis. Any organism that can make its own food. |
| Herbivore | an organism that eats plants |
| Population | how many of the same type of organism are in the same area. |
| Tolerance range | the abiotic conditions within which a species can survive. |
| Biosphere | the living things on the planet. |
| Organic | substances or organisms that come from living animals or plants |
| Extirpated | a species that has gone extinct in a given area |
| Special concern | (vulnerable) a species that is undergoing some form of stress |
| Ecology | the study of organisms and their interactions in their environment |
| Climate | the weather in a given area over a long period of time |
| Nitrites | converted nitrogen from nitrates |
| Biome | a large naturally occurring area defined by climate with a specific set of biotic and abiotic features |
| Biotic | the living parts of an ecosystem |
| Pest | any plant animal or organism that causes illness, harm or annoyance to humans |
| Ecosystem | all living organisms in their physical environment |
| Energy | the ability to do work |
| Consumer | an organism that must eat another to get its energy |
| Omnivore | an organism that eats both plants and animals |
| Predator | an organism that preys on other organisms |
| Atmosphere | all gases surrounding earth |
| Inorganic | not alive and never was alive |
| Endangered | seriously at risk of being extinct |
Created by:
marsenault
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