Environmental Science Final: Question Preview (ID: 31805)

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A population of wolves is reintroduced into Yellowstone National Park. For the first decade, the wolf population grows exponentially. Then, the population growth slows. The new pattern is known as
a) Logistic growth b) Limiting factors c) Carrying capacity d) Exponential growth
“All living things and their physical environment within a given area” best defines
a) A community b) An ecosystem c) The biosphere d) A population
You will be conducting a study of the interactions of vegetation, animals, mineral composition of the soil, and water levels in a salt marsh. You are studying the salt marsh
a) Population b) Biosphere c) Community d) Ecosystem
Every spring, many species of bird travel north to the Arctic to breed, in the fall travel south again for winter. This is an example of
a) Immigration b) Emigration c) Migration d) Population growth
You are studying the vegetation communities of the Mongolian grasslands in a 1000-square-kilometer area. What is your best strategy for estimating the number of individuals of different plant species growing throughout the grasslands?
a) Direct observation b) Sampling c) Indirect observation d) Simply counting each one
Giraffes, lions, zebras, hyenas, and all other living things of the Serengeti make up a(n)
a) Ecosystem b) Population c) Community d) Biosphere
A species with a restricted tolerance for environmental conditions is
a) A specialist b) A generalist c) Highly competitive d) An autotroph
In the history of the world, how many mass extinctions have occurred?
a) 5 b) 7 c) 10 d) 13
A deer eating a shrub is an example of
a) Predation b) Parasitism c) Herbivory d) Symbiosis
The first level of all food pyramids
a) Consists of primary producers b) Consists of primary consumers c) Is chemosynthesis d) Is photosynthesis
Pandas depend on bamboo. The amount of intact bamboo forest will help determine the
a) Biotic potential of the population b) Carrying capacity of the population c) Sex ratio of the population d) Limiting factor of the population
Fish, cattails, frogs, water lilies, dragonflies, and all the other living things in a pond make up a(n)
a) Population b) Community c) Ecosystem d) Biosphere
A grassland experiences a drought that causes most of the plants to die and several watering holes to dry up. The antelope that live on the grassland experience a decrease in population because water and plants are key
a) Biotic factors b) Abiotic factors c) Resources d) Habitats
In a population of 100 monkeys, you count 48 males and 52 females. This population has an approximately even
a) Sex ratio b) Biotic potential c) Survivorship curve d) Carrying capacity
A population’s growth rate is determined by births, deaths,
a) Immigration and emigration b) Immigration and migration c) Migrations and biotic potential d) Immigration and biotic potential
An ecologist who is studying the mineral requirements and daily water intake of a plant species is studying the
a) Individual b) Plant’s population c) Plant’s community d) Plant’s ecosystem
Every summer, Siberian cranes fly from India to Siberia, where they breed and raise their young. When winter comes, the cranes fly back to India. This is an example of
a) Immigration b) emigration c) migration d) population control
The equation for determining population growth is
a) (births + deaths) – (immigration + emigration) b) (births + emigration)n + (deaths – immigration) c) (births + immigration) + (deaths – emigration) d) (births + immigration) – (deaths + emigration)
Tigers living in warm climates have thinner coasts of fur than tigers living in cool climates. This is a result of
a) Ecosystem diversity b) Species diversity c) Genetic diversity d) Ecosystem health
The easiest component of biodiversity to measure is
a) Ecosystem diversity b) Species diversity c) Genetic diversity d) Ecosystem health
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