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Ch. 30 Ecology
Ch. 30 Ecology and Populations Review
| Question | Answer |
|---|---|
| Human societies at present are participating in ___ practices... | Unsustainable |
| Level of ecological study that involves both biotic and abiotic components... | Ecosystem |
| Globally, if a population lives only along a lake's shoreline, members of this population exhibit ___ spatial distribution... | Clumped |
| If the # of prereproductive and reproductive members of a population exceeds the number of postreproductive members, the population will... | Grow |
| ___ growth occurs when a population size is increasing... | Exponential |
| Deer prefer to feed on a dense thicket of oak saplings rather than more widely spaced young oak trees, this is an example of... | Predation |
| The Ozark snarl-lip bat prefers to eat the fruit of the walnut tree as does the flying squirrel, this is an example of... | Competition |
| Resource availability is a ___ factor... | Density-dependent |
| Weather is a ___ factor... | Density-independent |
| Decreased death rate followed by decreased birthrate has occurred in ___ countries... | More developed |
| The biological level of organization subject to evolution by natural selection... | Population |
| Populations maximum growth rate is also known as its ___... | Biotic potential |
| Components of the environment that support its organisms... | Resources |
| Technically has the lowest population density... | Greenland |
| An ecosystem consists of a ___ of living things as well as the physical environment... | Community |
| Ecology began as part of ___... | Natural history |
| ___ will contribute most to the world population growth... | Less developed countries |
| ___ is the number of individuals per unit area or volume... | Population density |
| Some estimates predict that the human population will exceed 9 billion people w/in ___ years... | 50 |
| The total number of individuals that the resources of an area can support... | Carrying capacity |
| The more developed countries tend to be in ___ and North America... | Europe |
| The study of ___ encompasses the organism, population, community, ecosystem and biosphere... | Ecology |
| A central goal of ecology is to develop ___ and explain and predict distribution and abundance of populations... | Models |
| Applies ecological principles to practical human concerns... | Environmental science |
| Studies all aspects of biodiversity with the goal of conserving natural resources... | Conservation biology |
| High standard of living, contributes least to population growth... | More developed countries |
| Decreased death rate followed by decreased birthrate... | Demographic transition |
| The number of individuals born roughly matches the number of individuals dying... | Replacement reproduction |
| A five year old child represents the... | Prereproductive age |
| An elderly woman represents the.. | Postreproductive age |
| A thirty year old woman/man represents the... | Reproductive age |
| Clumped, random or uniform... | Population Distribution |
| S-shaped growth curve... | Logistic growth |
| Portion of the globe where a species can be found... | Range |
| J-shaped growth curve... | Exponential growth |
| Exhibit exponential growth; small in size; mature early and have a short life span; limited parental care... | Opportunistic species |
| Exhibit logistic growth; large in size; slow to mature and have a long life span; good parental care... | Equilibrium species |
| Consists of all the various populations at a particular locale... | Community |
| A group of individuals of the same species in a given location at the same time... | Population |
| Occurred in the 1800's and brought on a population increase due to increased production of food and jobs... | Industrial revolution |
| The length of time it's assumed to take for the human population to double... | Thirty-five years |
| Measured in terms of population size and resource consumption per capita... | Environmental impact |
| Characteristics of a population.... | Demographics |
| ___ represent the varying ages of the individuals in a population... | Age structure diagram |
| How age at death influences population size... | Survivorship |
| Country with the highest population density... | Monaco |
| Plotting the number of survivors per 1,000 births against age produces a(n)... | Survivorship curve |
| Can occur when members of the same species attempt to use resources that are limited in supply but necessary to survival... | Competition |
| Occurs when one organism eats another... | Predation |
| Total disappearance of a species or higher group... | Extinction |
| The study of ecology encompasses the organism, population, community, ___ and the whole biosphere. | Ecosystem |
| Portion of Earth's surface where living things exist | Biosphere |
| Some estimates predict that the world's human population will exceed ___ by 2050! | 9 Billion |
| The highest population growth rates are found in ___ and the middle East. | Africa |
Created by:
SavannahElkins
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