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Ecology
| Question | Answer |
|---|---|
| Biosphere | The part of the Earth where living things can be found |
| Define ecosystem | An environment where living things interact with the biotic and abiotic factors around them |
| Another word for producer is ___ | Autotroph |
| Another word for consumer is ___ | Heterotroph |
| What do decomposes do? | They are organisms that recycle dead plants/animals |
| What are scavengers? | They are organisms that feed on dead animals |
| Life processes examples | Movement, growth, reproduction |
| Land component of biosphere is the ___ | Lithosphere |
| What is a tropic level? | It is a feeding level |
| Define food web | A group of interacting food chains on an ecosystem |
| A(n) ___ food chain is found on land | Terrestrial |
| A(n) ___ food chain is found in water | Aquatic |
| Primary consumers are ___ (diet) | Herbivores |
| Define ecology | Study of how organisms interact with each other and their environment |
| Define biodiversity | Biodiversity is when there is a variety of living things in an ecosystem |
| Define toxin | A substance that is harmful when absorbed in small amounts |
| 3 types of pesticides | Herbicides: kills insects Fungicides: kills fungus + mold Insecticides: kills insects |
| Meecury + leads are ___ | Toxins and heavy metals |
| Mimicry is ___ | When animals copy anothers appearance/behaviour |
| Define mutualism + example | A relationship between 2 living organisms that benefits both. Ex. bee collects nectar for food -- pollen sticks to their bodies. They transfer the pollen while travelling to the next flower, allowing the plant to repreduce. |
| Define commensalism + example | A relarionship between 2 living organisms where one is help and the other is unaffected. Ex. fish feeds on organisms on whale shark's body and get a free ride; whale shark is unaffected. |
| Define parasitism + example | A relationship between 2 living organisms that benefits one organism (the parasite) and harms the other (the host). Ex. Tick gets food fof biting the host, but host can be exposed to Lyme disease |
| What 3 factors make a food web biodiverse? | Number of organisms, producers, and food chains |
| Define sustainability | The practice of living in a way that ensures resources are available for future generations |
| Predator prey graph meaning? | When B has a higher population, population A is lower |
| S-curve graph meaning | Carrying capacity has been reached (the point where it levels off) |
| J-curve graph meaning | Population explosion ex humans (not dying the way we used to, no natural predators). Eventually, carrying capacity will be reached. |
| Competition graph meaning | A graph that shows 2 or more organisms competing for the same food source |
| Interdependent meaning | Describes living things linked together in an ecosystem |
| Community vs population | Community: set of biotic populations in an area Population: the number of individuals of 1 species in an area |
| Abiotic vs biotic limiting factors | Abiotic limiting factor: species has range of tolerance for temp, precipitation, sunlight Biotic limiting factor: help describe how well a species will survive in an ecosystem ex competion, predation, interactions with other species |
| Define invasive species | Non native species that live in that habitat normally but do very well and harm local species ex emerald ash borer |
| 3 categories of toxins | Pesticides, heavy metals, other chemicals |