Biology 211 Exam 1 – Questions With Verified
Solutions
The main reason polar regions are cooler than the equator is that Correct
Answer - sunlight strikes the poles at a lower angle
Imagine that a deep temperate zone lake did not "turn over" during the spring
and fall seasons. Based on the physical and biological properties of limnetic
ecosystems, what would be the difference from normal seasonal turnover?
Correct Answer - Lakes would suffer nutrient depletion in surface layers.
Which marine zone would have the lowest rates of primary productivity
(photosynthesis)? Correct Answer - Aphiotic
Which biome is characterized by plants whose leaves drop in winter time?
Correct Answer - Temperate deciduous forest
The formation of mountains affects the climate and vegetation of the
surrounding areas to the greatest extent by influencing Correct Answer -
precipitation
topsoils are usually poor nutrient reservoirs in Correct Answer - tropical
rainforests
The formation of mountains affects the climate and vegetation of s Correct
Answer -
Any process in which a signal from one individual modifies the behavior of a
recipient individual is termed ________. Correct Answer - communication
a graph curving upwards demonstrates what type of population growth
Correct Answer - exponential
a symbiotic attachment in which one species simply lives better in the
presence of another species that is relatively unaffected is called Correct
Answer - commensalism
, term for a group of individuals of the same species occupying a given area
Correct Answer - population
A one-way relationship in which one species benefits at the expense of
another is called Correct Answer - parasitism
in a food web, which organisms are not dependent on the others for food
Correct Answer - producers
which gas is increasing in the atmosphere and causing the greenhouse effect
Correct Answer - carbon dioxide
What is eutrophication? Correct Answer - increased nutrients in a body
of water that can lead to decreased oxygen levels
why do invasive species decrease biodiversity? Correct Answer - No
natural predators, outcompete native species for resources, rapid population
growth
the age structure diagram for rapidly growing populations Correct Answer -
is in the form of a pyramid and has a very broad base showing large number of
young
why is energy lost when herbivores eat primary producers? Correct Answer
- energy is lost because most of the total energy consumed is used for
cellular respiration rather than growth and reproduction
how does biomagnification affect a food chain? Correct Answer - toxic
chemicals in the environment increase in concentration within top level
predators
which location is the main reservoir for nitrogen in the nitrogen cycle?
Correct Answer - the atmosphere
Blind cuckoo hatchling shoves the eggs out of the nest, eliminating the
competition. This is an example of what type of behavior? Correct Answer -
Innate behavior
Solutions
The main reason polar regions are cooler than the equator is that Correct
Answer - sunlight strikes the poles at a lower angle
Imagine that a deep temperate zone lake did not "turn over" during the spring
and fall seasons. Based on the physical and biological properties of limnetic
ecosystems, what would be the difference from normal seasonal turnover?
Correct Answer - Lakes would suffer nutrient depletion in surface layers.
Which marine zone would have the lowest rates of primary productivity
(photosynthesis)? Correct Answer - Aphiotic
Which biome is characterized by plants whose leaves drop in winter time?
Correct Answer - Temperate deciduous forest
The formation of mountains affects the climate and vegetation of the
surrounding areas to the greatest extent by influencing Correct Answer -
precipitation
topsoils are usually poor nutrient reservoirs in Correct Answer - tropical
rainforests
The formation of mountains affects the climate and vegetation of s Correct
Answer -
Any process in which a signal from one individual modifies the behavior of a
recipient individual is termed ________. Correct Answer - communication
a graph curving upwards demonstrates what type of population growth
Correct Answer - exponential
a symbiotic attachment in which one species simply lives better in the
presence of another species that is relatively unaffected is called Correct
Answer - commensalism
, term for a group of individuals of the same species occupying a given area
Correct Answer - population
A one-way relationship in which one species benefits at the expense of
another is called Correct Answer - parasitism
in a food web, which organisms are not dependent on the others for food
Correct Answer - producers
which gas is increasing in the atmosphere and causing the greenhouse effect
Correct Answer - carbon dioxide
What is eutrophication? Correct Answer - increased nutrients in a body
of water that can lead to decreased oxygen levels
why do invasive species decrease biodiversity? Correct Answer - No
natural predators, outcompete native species for resources, rapid population
growth
the age structure diagram for rapidly growing populations Correct Answer -
is in the form of a pyramid and has a very broad base showing large number of
young
why is energy lost when herbivores eat primary producers? Correct Answer
- energy is lost because most of the total energy consumed is used for
cellular respiration rather than growth and reproduction
how does biomagnification affect a food chain? Correct Answer - toxic
chemicals in the environment increase in concentration within top level
predators
which location is the main reservoir for nitrogen in the nitrogen cycle?
Correct Answer - the atmosphere
Blind cuckoo hatchling shoves the eggs out of the nest, eliminating the
competition. This is an example of what type of behavior? Correct Answer -
Innate behavior
