Term
| Distinguish between habitat and niche. |
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Definition
| Habitat is the entire ecosystem. Niche is the resources needed to survive. |
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Term
List the type od symbiosis next to the clue:
Two way benefit: _______________
Host is harmed: _______________
No effect on host: _______________ |
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Definition
- Mutualistic
- Parasitism
- Commensalism
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Term
| What 3 things does every niche include? |
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Definition
| Food, Abiotic conditions, behavior |
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Term
| What resources does an organism need in order to be successful in its habitat? |
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Definition
| Food, water, space, and shelter. |
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Term
| List 3 possible outcomes as a result of competitive exclusion. |
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Definition
Niche partitioning.
Evolutionary response.
Ecological equivalents. |
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Term
| Explain how the mantella frog (Madagascar) and the poison dart frog (South America) exhibit qualities of ecological equivalents. |
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Definition
| They have the same niche, but since they live in different geological regions, they will never have to compete for resources. |
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Term
| What are 2 important ways that organisms interact? |
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Definition
| Competition and predation. |
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Term
| How are interspacific competition and intraspecific competition different? |
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Definition
| Interspecific is competition between 2 different species for the same limited resource. Intraspecific is competition between the same species for the same limited resource. |
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Term
| How does natural selection shape predator-prey relationships? |
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Definition
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Term
| Explain symbiosis. Is it always good? |
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Definition
| No, because there could be parasitic symbiotic relaionship that hurts the host. |
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Term
| What are 3 types of symbiotic relationships? |
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Definition
- Mutualistic
- Parasitic
- Commenslistic
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Term
| What is the difference between endoparasites and ectoparasites? |
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Definition
| Endoparasites affect the inside of an organism, and ectoparasites affect the outside. |
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Term
| Why don't enoparasites have complex digestive systems? |
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Definition
| They get their energy from their host's already digested food. |
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Term
| List an example of an endoparaste and an example of an ectoparasite. |
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Definition
Endoparasite: Tapeworm
Ectoparasite: Leach |
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Term
| What are 3 properties of populations? |
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Definition
| Immigration, Emigration, Births. |
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Term
| How can population density be calculated? |
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Definition
# of individuals = Population density
area (units)2 |
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Term
| List and describe 3 population dispersion patterns. |
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Definition
Clumped- individuals live close together in a group
Uniform- individuals live at specific distances form one another
Random- individuals spread randomly within area or volume |
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Term
| What type of intraspecies interaction might cause uniform dispersion? |
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Definition
| Competition for limited resources. |
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Term
| List, describe, and draw an example of each of the 3 types of survivorship curves. |
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Definition
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Term
What type of organism would exhibit:
a. Type I survivorship _________
b. Type II survivorship __________
c. Type III survivorship __________ |
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Definition
a. Humans
b. Squirrels
c. Mosquitos |
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Term
| What connection do survivorship curves and reproductive strategies have? |
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Definition
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Term
| What four things can cause changes in population growth? |
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Definition
| Immigration, Births, Deaths, Emigration |
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Term
| The rate of growth for a population is directly determined by the amount of ______ available. |
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Definition
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