Exam II
The current 2019 human population is about
7.8 billion
Oceans cover approximately
70% of earth's surface
The area of the world with the most rapidly growing population is
Africa
The demographic transition model seeks to explain the steps necessary for a country to move from a poor (less developed) to a richer (more developed) economy. Which of the following statements about the model is correct?
After an economy has completed the demographic transition, the birth rates are low and the death rates are low.
Many women in the world are having more children than they want. Which of the following statements about world family planning programs is correct?
Family planning programs can reduce total fertility rates and improve the health of mothers and children and one of their major goals is to provide accurate information about contraception
Deer invest a great deal of energy in a few offspring that have a good chance of living to reproduce. They are said to be
K-strategists
The population of the United States is likely to show which of the following changes over the next 50 years?
The average age of the population will increase
Which one of the following statements about population growth is correct?
The number of offspring produced per female is very important
The size of the population of an animal like a rabbit is likely to be controlled by which one of the following?
The size of the populations of owls, foxes, and coyotes
which country is nOT a member of OPEC
US
Which is an example of a stage in secondary succession?
a forest regenerating after a forest fire
for a nation to participate in the Industrial revolution, they had to have
a source of coal
Most grasslands in North america have been heavily influenced by
agriculture and the grazing of domesticated animals
from an historical perspective which of the following causes the greatest alteration in people's lifestyle?
automobile
Organisms that are attached to the bottom of the ocean are called ____ organisms
benthic
Amount of oxygen used by decomposer organisms to degrade organic molecules in aquatic ecosystems
biochemical oxygen demand
Which of the following is NOT an environmental factor limiting population size?
biotic potential
Mediterranean scrubland (chaparral) have been heavily impacted by humans because
both they are near the oceans and they have a moderate climate
Almost all electrical energy is produced as a result of
burning fossil fuels
Ecologists refer to the maximum sustainable population for an area as
carrying capacity
OPEC
control about 40% of the world's oil production
All of the following must be in the euphoric zone EXCEPT
crabs
Limiting factors that are not affected by population size are
density-independent
the first transfer of energy on earth occurs
during photosynthesis
People in low income countries
eat less animal protein than those in high income countries
The remains of plants, animals, and microorganisms is commonly referred to as
fossil fuels
the most energy-demanding activity in a typical home is
heating and cooling
The total fertility rate is
high in economically less developed regions of the world
Which one of the following government actions matches its outcome?
high taxes on motor fuels lead to increased fuel efficiency
Which of the following factors may cause a population to grow?
higher birthrate than death rate
in order to save the northern spotted owl, ___ was banned on much of the old-growth forest in the PNW where the owl lives
logging
In desert biomes, flowering usually coincides with
moisture availability
You would find a temperate rainforest along the coasts of all of the following locations except
northern New York
In addition to northern latitudes, patches of tundra-like plant communities are also found
on mountain tops
Which group of organisms forms the base of the energy pyramid in a pelagic marine ecosystem?
phytoplankton
The two major factors influencing vegetation in biomes are
precipitation and temperature
In a rainforest, most of the sunlight is captured by trees and therefore only
shade-tolerant plants live beneath the canopy
The price of fuel for vehicles is determined by
supply and demand, political events in oil producing countries, and taxes
Which biome is characterized by organisms that are inactive during the day and burrow underground?
taiga
Human population growth rates are influenced by both biological and cultural factors. Which of the following biological factors is NOT related to differences in the population growth rates countries?
the age at which girls can first become pregnant
The number of immigrants entering a country is a likely to be influenced by
the need of a country to have more workers, willingness of a country to accept immigrants, economic and political condition in neighboring countries
The environment impact of a country is determined by
the size and rate of growth of its population, the energy used by a typical person, the number of possessions of a typical person
the large difference is gasoline prices between US and most European countries is cause by a difference in
the taxes government place on gasoline
Future world population increase is likely. which of the following is likely to become an issue?
there will be a greater impact on non-human organisms
Which of the following is NOT true of climax communities
they have fewer types of interactions among organisms than successional communities
Which biome is characterized by tree frogs, large vines, and fruit-eating birds and bats?
tropical rainforest
Savannas are found in
typical parts of Africa
choose the correct historical sequence of fuel use in the US from 1800 to the present
wood, coal, oil, gas