Unit 1
An investigation was designed to determine the effect of ultraviolet light on mold spore growth. Two groups of mold spores were grown under identical conditions, except one group was exposed only to ultraviolet light, while the other group was grown in total darkness. In this investigation, the group of mold spores grown without receiving any ultraviolet light is known as the
A) control
B) hypothesis
C) dependent variable
D) limiting factor
What is biodiversity and what can increase biodiversity?
What is a consequence of having an increasing human population?
A) an increase in the numbers and kinds of organisms worldwide
B) a decrease in the availability of natural resources
C) a decrease in deforestation due to technological improvements
D) an increase in biosphere stability
B) a decrease in the availability of natural resources
Put a zero on the x axis, put a zero on the y axis
Which statement illustrates a biotic resource interacting with an abiotic resource?
A) A rock moves during an earthquake.
B) A sea turtle transports a pilot fish to food.
C) A plant absorbs sunlight, which is used for photosynthesis.
D) Wind causes waves to form on a lake.
C) A plant absorbs sunlight, which is used for photosynthesis.
Producers are generally found at the beginning of a food chain. Which statement best explains why this is true?
A) Producers are usually smaller in size than consumers.
B) Producers do not rely on other organisms for food.
C) There are always more consumers than producers in food chains.
D) Consumers are always more complex organisms than producers.
B) Producers do not rely on other organisms for food.
Nonrenewable resources are
A) not finite and are not depleted over time
B) not finite and are depleted over time
C) finite and are not depleted over time
D) finite and are depleted over time
D) finite and are depleted over time
What would be a hypothesis statement for researching if students' IQ levels grow with increased phone use?
If students' use their phones less in a day, their IQ levels increase.
If students' use their phones less in a day, their IQ levels decrease.
The large amount of salt in the air and water of coastal areas determines which species can exist there. In these areas, what does the salt function as?
A) source of energy
B) biotic factor
C) food source
D) limiting factor
D) limiting factor
Which process occurs at each link in a food chain?
A) All the energy is stored in a newly made structure.
B) Some energy is released into the environment as heat.
C) Chemical energy is recycled.
D) Atoms cycle among living organisms, producing energy.
B) Some energy is released into the environment as heat.
In New York State, cars are inspected to be sure they are not releasing excessive amounts of several gases into the atmosphere. This is done in an effort to
A) recycle more nutrients
B) reduce biodiversity
C) reduce global warming
D) increase the growth rates of forests
C) reduce global warming
What are the 3 different symbiotic relationships and provide the definitions?
mutualism (+,+), commensalism (+,0), parasitism (+,-)
A student designed an experiment to determine if air temperature had an effect on the rate of photosynthesis in corn plants.
The independent variable in this experiment is the
A) air temperature at which the corn plants were grown
B) amount of carbon dioxide used by the corn plants
C) volume of oxygen produced by the corn plants
D) number of corn plants used
A) air temperature at which the corn plants were grown
What is carrying capacity?
The maximum number of individuals in a species that an environment can support for the long term.
The increased use of wind turbines and solar collectors to generate electric power will
A) negatively affect ecosystems by increasing biodiversity
B) negatively alter the chemical composition of soil and water
C) reduce the amount of pollution that comes from the burning of fossil fuels
D) increase oil consumption for business and industry
C) reduce the amount of pollution that comes from the burning of fossil fuels
Name a renewable and non-renewable resource and provide the benefit and negative of one.
Renewable: solar, wind, water, geothermal
Non renewable: oil, coal, fossil fuels, natural gas
What are 3 examples of controlled variables in a plant experiment that looks at plant growth in different temperatures?
What is ecological succession? Which of the 3 stages is the most stable?
Ecological succession is the process where a community of organisms in an ecosystem gradually changes over time. Climax community is the most stable stage
The emerald ash borer is an insect that is thought to have been accidentally brought to the United States from China in shipping containers. It attacks ash trees, eventually killing the trees, destroying an important part of the ecosystem. The presence of the emerald ash borer in the United States can be used as an example of how humans have
A) purposely introduced an insect to correct a problem in an ecosystem
B) used an insect to remove one insect species and replace it with another
C) worked to increase the biodiversity in a particular area
D) altered the equilibrium in an ecosystem by introducing a new species
D) altered the equilibrium in an ecosystem by introducing a new species
Explain what global warming is and provide 2 pieces of evidence that is harming our environment
Global warming is the long-term heating of Earth's surface due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth's atmosphere.
2 examples: ice caps are melting, sea levels rising, extreme weather, increased temperatures