Question 110 out of 10 points
Which of the following best matches the description?Central region of an atom.
Selected Answer:nucleus
Answers:respiration
pH
enzyme
ion
photosynthesis
acid
combustion
potential energy
base
proton
electron
isotope
neutron
kinetic energy
nucleus
entropy
latent heat
Response Feedback:correct
Question 210 out of 10 points
Some of the steps followed in the scientific method include:
Selected Answer:observation, formulate and test a hypothesis, compare results to others and publish.
Answers:write a dissertation and present the information at a scientific conference.
analyze historical events and offer your opinion of the key findings.
observation, formulate and test a hypothesis, compare results to others and publish.
interview many people about their reaction to current events.
Response Feedback:correct
Question 310 out of 10 points
Which of the following best matches the description?Number used as a measure of hydrogen ion concentration.
Selected Answer:pH
Answers:respiration
pH
enzyme
ion
photosynthesis
acid
combustion
potential energy
base
proton
electron
isotope
neutron
kinetic energy
nucleus
entropy
latent heat
Response Feedback:correct
Question 410 out of 10 points
The scientific method is the process that scientists use to
Selected Answer:rigorously test the solutions to new questions.
Answers:evaluate student learning.
rigorously test the solutions to new questions.
study a crime scene.
photograph human behavior.
Response Feedback:correct
Question 510 out of 10 points
Which of the following best matches the description?Molecule or atom which has lost or gained an electron.
Selected Answer:ion
Answers:respiration
pH
enzyme
ion
photosynthesis
acid
combustion
potential energy
base
proton
electron
isotope
neutron
kinetic energy
nucleus
entropy
latent heat
Response Feedback:correct
Question 610 out of 10 points
Which of the following small molecules are converted to form sugar in photosynthesis?
Selected Answer:water and carbon dioxide
Answers:oxygen and water
hydroxyl ion and hydrogen
carbon dioxide and oxygen
water and carbon dioxide
Response Feedback:correct
Question 70 out of 10 points
In the United States, what percentage of energy consumed is in the form of electricity?
Selected Answer:73%
Answers:36%
94%
4%
73%
Response Feedback:incorrect
Question 810 out of 10 points
Energy that cannot be used to do useful work is referred to as
Selected Answer:entropy.
Answers:potential energy.
entropy.
kinetic energy.
enzymatic energy.
Response Feedback:correct
Question 910 out of 10 points
Pseudoscience
Selected Answer:All of these are correct.
Answers:is a deceptive practice.
utilizes appearance and language of science.
is misleading.
All of these are correct.
Response Feedback:correct
Question 1010 out of 10 points
Reproducibility is an important part of the scientific method and means that
Selected Answer:other scientists are able to repeat the experiment and obtain similar results.
Answers:other scientists are able to repeat the experiment and obtain similar results.
scientists show all the calculations in their work.
scientists have an idea that they are testing.
a control group is always used.
Response Feedback:correct
Question 1110 out of 10 points
Which of the following countries has the lowest population growth rate?
Selected Answer:Sweden
Answers:China
Mexico
India
Sweden
Response Feedback:correct
Question 1210 out of 10 points
Which of the following best matches the description?Limiting factors that become more severe as the size of the population increases.
Selected Answer:density-dependent limiting factor
Answers:stable equilibrium phase
exponential growth phase
biotic potential
carrying capacity
r-strategist
lag phase
K-strategist
environmental resistance
population density
density-dependent limiting factor
death phase
density-independent factor
dispersal
age distribution
emigration
immigration
Response Feedback:correct
Question 1310 out of 10 points
The human population growth curve is currently in which phase?
Selected Answer:exponential growth
Answers:death phase
lag phase
stable equilibrium
exponential growth
Response Feedback:correct
Question 1410 out of 10 points
Which of the following best matches the description?Portion of the population growth curve that shows the population declining.
Selected Answer:death phase
Answers:stable equilibrium phase
exponential growth phase
biotic potential
carrying capacity
r-strategist
lag phase
K-strategist
environmental resistance
population density
density-dependent limiting factor
death phase
density-independent factor
dispersal
age distribution
emigration
immigration
Response Feedback:correct
Question 1510 out of 10 points
As a result of the ban on international trade of elephant products,
Selected Answer:the elephant population has exploded.
Answers:the elephant population has declined.
the antelope population has declined.
native peoples have starved from famine.
the elephant population has exploded.
Response Feedback:correct
Question 1610 out of 10 points
Which of the following limiting factors is NOT a component of environmental resistance?
Selected Answer:organismal biotic potential
Answers:availability of raw materials
organismal biotic potential
availability of energy
accumulation of waste products
All of these are correct.
Response Feedback:correct
Question 1710 out of 10 points
Which of the following best matches the description?Limiting factors that are not affected by population size.
Selected Answer:density-independent factor
Answers:stable equilibrium phase
exponential growth phase
biotic potential
carrying capacity
r-strategist
lag phase
K-strategist
environmental resistance
population density
density-dependent limiting factor
death phase
density-independent factor
dispersal
age distribution
emigration
immigration
Response Feedback:correct
Question 1810 out of 10 points
On a population growth curve, the _____________________ phase results in the same percentage increase each year.
Selected Answer:exponential growth
Answers:lag
deceleration
stable equilibrium
exponential growth
Response Feedback:correct
Question 1910 out of 10 points
Ecologists refer to the maximum sustainable population for an area as
Selected Answer:carrying capacity.
Answers:exponential growth.
lag phase.
carrying capacity.
None of these are correct.
Response Feedback:correct
Question 2010 out of 10 points
Which condition is necessary for a population to grow?
Selected Answer:Birthrate must exceed death rate.
Answers:Stabilization must occur.
Mortality must exceed natality.
Birthrate must exceed death rate.
Carrying capacity must occur.
Response Feedback:correct
Question 210 out of 10 points
In 2002 Iowa became the first state to regulate the use of phosphorus in lawn fertilizer.
Selected Answer:True
Answers:True
False
Response Feedback:incorrect
Question 2210 out of 10 points
During the carbon cycle, the same carbon atoms are used over and over again.
Selected Answer:True
Answers:True
False
Response Feedback:correct
Question 230 out of 10 points
Charles Darwin developed the idea of natural selection without understanding the gene concept.
Selected Answer:False
Answers:True
False
Response Feedback:incorrect
Question 2410 out of 10 points
Genes are distinct pieces of DNA that determine the characteristics an individual displays.
Selected Answer:True
Answers:True
False
Response Feedback:correct
Question 2510 out of 10 points
The upper layer of an aquatic ecosystem where sunlight penetrates is termed the euphotic zone.
Selected Answer:True
Answers:True
False
Response Feedback:correct
Question 2610 out of 10 points
Mangrove swamps are tropical marine shoreline ecosystems dominated by trees.
Selected Answer:True
Answers:True
False
Response Feedback:correct
Question 270 out of 10 points
Organisms in each biome have adapted to the climatic conditions typical of that biome.
Selected Answer:False
Answers:True
False
Response Feedback:incorrect
Question 2810 out of 10 points
Streams differ from lakes in that they are high in pre-glacial sediment.
Selected Answer:False
Answers:True
False
Response Feedback:correct
Question 29Needs Grading
In your own words explain the concept of Carrying Capacity. Now tell me what does the term Sustainability mean?
So tell me what is the relationship between these two concepts? How are they connected? Or are they connected? Is it pseudoscience to compare these two things? What do you think?
Selected Answer:Carrying Capacity is the maximum population size of the species that the environment can sustain indefinitely. The term sustainability means the ability to be maintained at a certain rate or level. These two concepts are connected because they both refer to the environment's ability to take care of species.
Correct Answer:Carrying capacity is the maximum population that can be supported by the environment in which the population inhabits. Sustainability is the concept that humans are to use the environment without degredation to allow for future use. The idea is that sustainability allows for looking at fugure use by humans, and not necessarily to protect the environment but to minimize the human impact so humans can continue to thrive in their environment. So the two are connected in that if the sustainabilty equation is not correc than the population could exceed the carrying capacity so that the population can not be sustainable. So they are connected, but the idea of sustainabilty does push the idea of pseudoscience in that it does not quite have proof that the equation will actually work because of the focus on humans and not the environment as a whole. If it is psuedoscience or not is yet to be proven, but it may or may not be accurate because how can someone decide what is needed for the future? One species going extinct can have an impact on the future as well as climate change and population growth, but how do we predict what is needed for future generations? Sustainabilty tries to determine the equation but carrying capacity is the result and it is proven, but not known until it is exceeded.
Response Feedback:[None Given]
Question 3010 out of 10 points
Shallow warm nutrient-rich lakes are described as
Selected Answer:eutrophic.
Answers:oligotrophic.
benthic.
eutrophic.
limnetic.
Response Feedback:correct
Question 3110 out of 10 points
You would find a temperate rainforest along the coasts of all of the following states except
Selected Answer:northern New York.
Answers:southern Alaska.
northern California.
northern British Columbia.
northern New York.
Response Feedback:correct
Question 3210 out of 10 points
The unusual forest biome occurring in California, Oregon, Washington, and British Columbia is called a
Selected Answer:temperate rainforest.
Answers:tropical rainforest.
boreal forest.
temperate rainforest.
temperate deciduous forest
Response Feedback:correct
Question 3310 out of 10 points
Which of the following best matches the description?Organisms that live on the bottom of marine or freshwater ecosystems.
Selected Answer:benthic
Answers:phytoplankton
littoral zone
desert
pioneer community
grassland
boreal forest
pelagic
tundra
benthic
deciduous forest
biochemical oxygen demand
periphyton
marsh
savanna
euphotic
Response Feedback:correct
Question 3410 out of 10 points
Human impact on temperate forests include
Selected Answer:All of these are correct.
Answers:farming.
logging.
population centers.
All of these are correct.
Response Feedback:correct
Question 3510 out of 10 points
Which of the following best matches the description?Biome that lacks trees and has permanently frozen soil.
Selected Answer:tundra
Answers:phytoplankton
littoral zone
desert
pioneer community
grassland
boreal forest
pelagic
tundra
benthic
deciduous forest
biochemical oxygen demand
periphyton
marsh
savanna
euphotic
Response Feedback:correct
Question 3610 out of 10 points
Ecologists have learned that succession is influenced by many factors other than climate alone including
Selected Answer:invasive species, disease, human land use history, and seed dispersal.
Answers:rainfall and temperature patterns.
invasive species, disease, human land use history, and seed dispersal.
biogeochemical cycles, available oxygen, and superfund sites.
slope, wind patterns, and toxicity levels.
Response Feedback:correct
Question 370 out of 10 points
Which of the following is NOT true of climax communities?
Selected Answer:They have more kinds of organisms.
Answers:They have fewer types of interactions among organisms.
They have more kinds of organisms.
They are in energy balance.
They are able to maintain their mix of species.
Response Feedback:incorrect
Question 3810 out of 10 points
In a rainforest, most of the sunlight is captured by trees and therefore only
Selected Answer:shade-tolerant plants live beneath the canopy.
Answers:small plants grow there.
fast growing trees and shrubs grow there.
vines can grow underneath them.
shade-tolerant plants live beneath the canopy.
Response Feedback:correct
Question 3910 out of 10 points
Which is an example of secondary succession?
Selected Answer:a burned field
Answers:bare rock
a burned field
standing water
pure sand
Response Feedback:correct
Question 4010 out of 10 points
Ecologists have traditionally categorized the roles of organisms in ecosystems into three broad categories that include
Selected Answer:All of these are correct.
Answers:producers.
consumers.
decomposers.
All of these are correct.
Response Feedback:correct
Question 4110 out of 10 points
This meat eater often gets meat from animals that have died by accident or illness, or were killed by other animals.
Selected Answer:scavenger
Answers:scavenger
omnivore
carnivore
parasite
Response Feedback:correct
Question 4210 out of 10 points
Among plants, a condition that results in the number of sets of chromosomes in cells to increase, is called
Selected Answer:polyploidy.
Answers:multi-genetics.
polyploidy.
diploid.
haploid.
Response Feedback:correct
Question 4310 out of 10 points
Which of the following best matches the description?Competition between members of the same species.
Selected Answer:intraspecific competition
Answers:denitrifying bacteria
herbivore
omnivore
producer
trophic level
community
ectoparasite
limiting factor
secondary consumer
nitrogen cycle
biomass
habitat
carbon cycle
interspecific competition
nitrogen-fixing bacteria
intraspecific competition
Response Feedback:correct
Question 4410 out of 10 points
Which of the following best matches the description?Competition between members of different species.
Selected Answer:interspecific competition
Answers:denitrifying bacteria
herbivore
omnivore
producer
trophic level
community
ectoparasite
limiting factor
secondary consumer
nitrogen cycle
biomass
habitat
carbon cycle
interspecific competition
nitrogen-fixing bacteria
intraspecific competition
Response Feedback:correct
Question 4510 out of 10 points
Which of the following best matches the description?Interacting groups of different species in a given area.
Selected Answer:community
Answers:denitrifying bacteria
herbivore
omnivore
producer
trophic level
community
ectoparasite
limiting factor
secondary consumer
nitrogen cycle
biomass
habitat
carbon cycle
interspecific competition
nitrogen-fixing bacteria
intraspecific competition
Response Feedback:correct
Question 4610 out of 10 points
The use of fertilizers in agriculture has significantly altered several nutrient cycles including
Selected Answer:All of these are correct.
Answers:nitrogen.
phosphorus.
potassium.
All of these are correct.
Response Feedback:correct
Question 4710 out of 10 points
Which of the following elements is a limiting factor to plants in naturally occurring soil?
Selected Answer:nitrogen
Answers:nitrogen
phosphorous
oxygen
carbon
Response Feedback:correct
Question 4810 out of 10 points
Which of the following is an example of an abiotic factor?
Selected Answer:the climate of the community in which the species mentioned above inhabit
Answers:the number of individuals of a particular species living in a community
the interactions between different species in a community
the diversity of prey and predator species in a community
the climate of the community in which the species mentioned above inhabit
Response Feedback:correct
Question 4910 out of 10 points
Which of the following best matches the description?A region in which an organism lives.
Selected Answer:habitat
Answers:denitrifying bacteria
herbivore
omnivore
producer
trophic level
community
ectoparasite
limiting factor
secondary consumer
nitrogen cycle
biomass
habitat
carbon cycle
interspecific competition
nitrogen-fixing bacteria
intraspecific competition
Response Feedback:correct
Question 50Needs Grading
You watched a video of the Galapogos islands and Darwin's voyage. List three important observations by Darwin from the video which lead to his theory of natural selection. Why were these observations important and how do they support his theory?
Selected Answer:Three important observations by Darwin from the video which led to his theory of natural selection include: all organisms producing more offspring than survive to adulthood, populations remain more or less constant in numbers, and members of the same species show variation in characteristics. These observations were very important because they helped to support his theory of natural selection.All organisms produce more offspring than survive to adulthood2. Populations remain more or less constant in numbers3. Members of the same species show variation in characteristics
Correct Answer:[None]
Response Feedback:[None Given]