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|
You
are doing a mark-recapture experiment to determine the population size of
the MendAliens living on an island in my back yard. Initially, you catch
and mark 130 MendAliens, which you then release. Next, you capture 90 MendAliens,
of which 20 are marked. What is your estimate of the population size of MendAliens
living on the island in my back yard? (Activity 52A)
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| 14 |
| 29 |
| 130 |
| 585 |
| 234,000 |
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Assume
there are 200 MendAliens living on an island in my back yard. If my island
has an area of 20 hectares, what is the population density of MendAliens
in terms of MendAliens per hectare? (Activity 52A)
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| 0.1 MendAliens per hectare |
| 4 MendAliens per hectare |
| 10 MendAliens per hectare |
| 200 MendAliens per hectare |
| 4,000 MendAliens per hectare |
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The mark-recapture method would be best for sampling a population of _____. (Activity 52A)
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| sharks |
| maple trees |
| rose bushes |
| wheat |
| oysters |
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Which of these species typically has a mortality rate that remains fairly constant over an individual's life span? (Activity 52B)
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| humans |
| robins |
| grasses |
| elephants |
| oysters |
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Oyster populations are primarily, if not exclusively, composed of _____. (Activity 52B)
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| larvae |
| adults |
| juveniles |
| larval and juvenile oysters |
| prereproductive oysters |
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Which of these organisms has a survivorship curve similar to that of oysters? (Activity 52B)
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| humans |
| robins |
| grasses |
| elephants |
| cats |
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Which of these organisms has a survivorship curve similar to that of humans? (Activity 52B)
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| oysters |
| robins |
| grasses |
| elephants |
| cats |
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At current rates of growth, the current human population size is expected to double in about _____ years. (Activity 52C)
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| 10 |
| 20 |
| 40 |
| 80 |
| 160 |
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Which of these was the first of the major events that stimulated an increase in the size of the human population? (Activity 52C)
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| the Industrial Revolution |
| the discovery of antibiotics |
| the advent of agriculture |
| the discovery of vaccines |
| the bubonic plague |
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Which of these was the second of the major events that stimulated an increase in the size of the human population? (Activity 52C)
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| the Industrial Revolution |
| the discovery of antibiotics |
| the advent of agriculture |
| the discovery of vaccines |
| the bubonic plague |
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Which of these was the third of the major events that stimulated an increase in the size of the human population? (Activity 52C)
|
| the Industrial Revolution |
| the discovery of antibiotics |
| the advent of agriculture |
| the discovery of vaccines |
| the discovery of vaccines and the discovery of antibiotics |
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Currently, how large is the worldwide population of humans relative to Earth's carrying capacity for humans? (Activity 52C)
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| at the carrying capacity |
| above the carrying capacity |
| below the carrying capacity |
| either at or above the carrying capacity |
| there is insufficient information to answer this question |
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Ignoring migration, the age structure of a human population likely to increase in size will have what shape? (Activity 52D)
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| pyramid |
| inverted pyramid |
| a rectangle tapering toward the top |
| both a pyramid and a rectangle tapering toward the top result in a population that increases in size |
| both an inverted pyramid and a rectangle tapering toward the top result in a population that increases in size |
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Ignoring migration, the age structure of a human population likely to decrease in size will have what shape? (Activity 52D)
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| pyramid |
| inverted pyramid |
| a rectangle tapering toward the top |
| both a pyramid and a rectangle tapering toward the top result in a population that decreases in size |
| both an inverted pyramid and a rectangle tapering toward the top result in a population that decreases in size |
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Ignoring
migration, the age structure diagram of a human population likely to maintain
a relatively stable size will have what shape? (Activity 52D)
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| pyramid |
| inverted pyramid |
| a rectangle tapering toward the top |
| both a pyramid and a rectangle tapering toward the top result in a population that remains stable in size |
| both an inverted pyramid and a rectangle tapering toward the top result in a population that remains stable in size |
