bio chapter 44 and 45 final
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In Inglés
In Inglés
Practique preguntas conocidas
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Completa 5 preguntas para habilitar la práctica
Exámenes
Examen: pon a prueba tus habilidades
Pon a prueba tus habilidades en el modo de examen
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Modos dinámicos
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Modo manual [beta]
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Modos específicos
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elección múltipleModo de elección múltiple
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EscrituraModo de solo escritura
bio chapter 44 and 45 final - Marcador
bio chapter 44 and 45 final - Detalles
Niveles:
Preguntas:
38 preguntas
| 🇬🇧 | 🇬🇧 |
| - Suggestions to decrease population size in less developed countries: | - establishment or strengthening of family planning programs - Display the onset of childbearing -Social progress reduces desire for large families, providing education, raising status for women, reducing child mortality |
| - Factors that slow or use the populations potential reproduction are: | 1. Number of offspring per productive event 2. Amount of competition within the population 3. Age and number of reproductive opportunities 4. Presence of disease and predators |
| - what terms are often used to characterize pattern of distribution | Clumped, random, uniform |
| - Limiting factors | Environmental aspects that determine where an organism lives |
| - Resources | Nonliving and living components of an environment that supports living organisms. |
| NA | NA |
| Ecology | The study of home (interaction of organisms with physical environment) |
| - Habitat | The place where the organism lives |
| - Population | All organisms of the same species in the same area |
| - Community | All the populations of multiple species interacting within same location |
| - Ecosystem | Communities of populations along with abiotic variables (availability of sunlight for plants) |
| - Ecologist study | The interaction and selection pressure that is caused by evolution and environmental aspects. |
| - Demography | The statistical study of a population including density, distribution, growth rate, mortality pattern, age distribution |
| - Population density | The number of individuals per unit area |
| - Population distribution | The pattern of dispersal of individuals across and given area |
| - Limiting factors | Environmental aspects that determine where an organism lives |
| - Resources | Nonliving and living components of an environment that supports living organisms. |
| - Limiting factors | Environmental aspects that determine where an organism lives |
| - what terms are often used to characterize pattern of distribution | Clumped, random, uniform |
| - what is the Rate of natural increase (r,) or growth rate, determined by | The number of individuals born each year minus the number of individuals that die each year |
| - Biotic potential | The highest possible rate of natural increase for a population |
| - Factors that slow or use the populations potential reproduction are: | 1. Number of offspring per productive event 2. Amount of competition within the population 3. Age and number of reproductive opportunities 4. Presence of disease and predators |
| - A cohort | All the members of a population born at the same time |
| - age distribution | Separated into three groups, pre-reproductive, reproductive, post reproductive |
| - Pyramid shaped age distribution | For under developed countries |
| - Bell shaped age distribution | For stable countries |
| - Semelparity | The members of the population have only a single reproductive event in their lifetime, moths |
| - Intero parity | Members of the population experienced many reproductive and throughout their lifetime, many vertebrates |
| - Exponential growth graph | J-shaped, depicts exponential growth, includes two phases (lag phase), growth is slow because the population is small (exponential growth) growth is accelerating |
| - Logistical growth graph | Has four phases (lag phase) growth is slow because the population is small, (exponential growth) growth is accelerating, (decelerating) growth is slowing down, (stable equilibrium) birth and death are equal |
| - R- selected population | Density independent: smaller individuals, shorter lifespan, fast mature, many offspring’s, little or no care of offspring, many offspring, die before reproducing, early reproductive age |
| - K-selected population | Density dependent: - Large individuals, longer lifespan, slow to mature, if you enlarge of Springs, much care of all the springs, most of the young survive till reproductive age, adapted to stable environment |
| - Suggestions to decrease population size in less developed countries: | - establishment or strengthening of family planning programs - Display the onset of childbearing -Social progress reduces desire for large families, providing education, raising status for women, reducing child mortality |
| EI= | Population size x resource consumption per capita |
| - Biogeochemical cycles | The pathways by which chemicals circulate through ecosystems involving both living and nonliving components, water cycle, carbon cycle, phosphorus cycle, nitrogen cycle. |
| - Phosphorus cycle | A sedimentary cycle, the chemical is absorbed from the soil by plant roots, passed to heterotrophs and eventually returned to the soil by decomposers |
| - Carbon and nitrogen cycles | Are gaseous, meaning that the chemical returns to end is withdrawn from the atmosphere as gas |
| - The water cycle, also known as the hydrological cycle | Evaporated water from the ocean exceed precipitation so there is a net movement of water vapor onto land, precipitation result in surface water and groundwater back to the sea, transpiration by plants contributes to evaporation |
| - The nitrogen cycle | Step 1- nitrogen gas converted into nitrate step 2- ammonium converted into nitrate by nitrifying bacteria |