Biologia

Páginas: 5 (1069 palabras) Publicado: 7 de noviembre de 2012
Cuestionario Biology
1. The difference is that population is the set of individuals of a
Same species, while the community is a conglomerate
includes all biological populations of animals and plants
live in a certain place, interacting with each other.

2. Cell, tissue, Organ, System, organism, population, community, ecosystem and biosphere.
3. the convergence of great naturalgeographic areas of the country ("biogeographic regions"), as are the two oceans, the Andes and the valleys of the Cauca and Magdalena, the Amazon, the Orinoco, and those ancient formations as the Serrania de la Macarena and the Sierra Nevada de Santa Marta.
4. An habitat is an ecological or environmental area that is inhabited by a particular species of animal, plant, or other type of organism.The habitat of titi monkeys :damp, low rainforest canopy near rivers
5. Raccoons naturally live in forests and eats insects, fruits, and other small creatures. i.e. fundamental niche. However encroachment by humans changes their habitat to an urban environment and they start to live off of our trash and other waste. i.e. realized niche.
6.
COMPETENCE | - | - | Hyena and lion |PARASITISM | + | - | Caterpillar with Wasp inside |
PREDATION | + | - | Cheetah and gazelle |
MUTUALISM | + | + | Remolas and shark |
COMMENSALISM | + | = | Orchid and plant. |

7. Herbivory: The consumption of plants without killing them. Most plants have common but very effective defenses and repellents. 
8. Coevolution: Two or more species having a close ecological relationship evolvetogether such that one species adapt to the changes of the other, thereby affecting each other's evolution. Interspecific relations: Interspecific competition for food or space, Parasite/host interactions, Predator/prey interactions, Symbiosis, Mutualism.
9. Resource partitioning: evolutionary change in species in response to selection pressures generated by interspecific competition.Competitive exclusion: is a proposition which states that two species competing for the same resources cannot coexist if other ecological factors are constant.
10. A pattern in which two species with overlapping ecological requirements differ more when they co-occur than when they do not. / it determines what part of the food chain links to what certain animal.
11. A keystone species isa species that has a disproportionately large effect on its environment relative to its abundance. Ecological dominance is the degree to which a taxon is more numerous than its competitors in an ecological community, or makes up more of the biomass. Most ecological communities are defined by their dominant species.
12. Keystone species: Sea urchin, California Mussels
Dominant Species: Some sea floorcommunities are dominated by brittle stars. Tidal swamps in the tropics are usually dominated by species of mangrove (Rhizophoraceae)
13. ProgressiveSuccession:
Succession where the developing plant community becomes complex and contains more species and biomass over time.
The regressive succession is certain to take place with long and super-strongly grazing onthe steppe vegetation. Withplants population alternating,the biological productivity will decrease,and thesoil as well as the underlying surface will also vary correspondingly. 
14. Immigration is people or animals moving and settling in a country or region to which they are not native.
Emigration is the act of permanently leaving one's country or region to settle in another.
The birth rate is typically the rate of birthsin a population over time
Mortality rate is a measure of the number of deaths in a population
15.
16. Growth Rate: ccurs when the growth rate of the value of a mathematical function is proportionalto the function's current value.
17.

18. Density-dependant factors-
Factors that basically depend on how much of a population lives in an area.
For instance: Food, if the...
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