Term
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Definition
| Humans in North America what kind of distribution pattern? |
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Term
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Definition
| The maximum rate of increase in numbers by a population. |
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Term
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Definition
| When limiting factors are absent, population growth is _______. |
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Term
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Definition
| Ideally, populations are limited in size by the habitat. This is also known as _______. |
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Term
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Definition
| If population changes are not related to its size, the causative factors are called _______. |
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Term
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Definition
| A weather-related event, such as a drought, would be called a _______ control. |
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Term
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Definition
| At high population densities, parasitism, disease, predation and competition all would _______ |
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Term
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Definition
| A group born into a population at the same time is called a _______. |
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Term
| Most Marine Invertebrates |
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Definition
| A type III survivorship curve (high juvenile mortality; a reverse J-shape) is shown by _______. |
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Term
| Type III is shown also by insects, fish, amphibians, and reptiles, all creatures with large litter size. |
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Definition
| Type III is shown also by insects, fish, amphibians, and reptiles, all creatures with large litter size. |
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Term
| Grasslands or Savannah Habitats |
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Definition
| The first human populations occurred in _______. |
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Term
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Definition
| The largest decrease in human population size was caused by _______. |
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Term
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Definition
| The most reasonable and reliable way to limit population growth is _______. |
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Term
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Definition
| _______ countries tend to be farther from ZPG. |
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Term
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Definition
| A combination of only producers and decomposers could be a _______ ecosystem. |
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Term
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Definition
| The word _______ means literally “to feed.” |
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Term
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Definition
| For a terrestrial ecosystem, the ultimate source of energy input is _______. |
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Term
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Definition
| Consume particulate or bulk dead organic material and, thus, must be animals. |
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Term
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Definition
| The most numerous organisms, use wastes, and occur at all trophic levels. |
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Term
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Definition
| Occur at the bottom of a pyramid of energy. |
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Term
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Definition
| Most of the water vapor in the atmosphere on earth comes from _______. |
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Term
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Definition
| _______ can occur as dissolved carbonates or bicarbonates, carbon dioxide, or plant cellulose. |
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Term
| Respiration, Volcanoes, Burning Coal, or Diffusion from the Ocean. |
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Definition
| Carbon can be put into the atmosphere by _______. |
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Term
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Definition
| Carbon enters animals in the form of _______. |
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Term
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Definition
| The greatest concentration and source of nitrogen on earth is the _______. |
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Term
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Definition
| Plants utilize _______ in the forms of ammonia and nitrates. |
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Term
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Definition
| Sharp increases in nutrient, especially N and P, concentrations can lead to _______ in a body of water. |
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