Biodiversity
What is the difference between heterotroph and autotroph?
Autotrophs make their own food, heterotrophs need to consume other for energy
If a grassland ecosystem has 10,000 kcal of energy at the producer level, approximately how much energy would be available to the secondary consumers?
100 kcal
Large bodies of water do not quickly fluctuate in temperature. Why?
Water has a high heat capacity.
What is transpiration?
Water movement through plants
What are the 3 fossil fuels?
Natural gas, Oil, Coal
What does a Primary Consumer eat?
Producers
What percentage of energy is typically transferred from one trophic level to the next in an energy pyramid?
10%
Water sticks well to many materials. What term relates to this property of water?
adhesion
Which term describes the movement of water from the surface to the atmosphere?
Evaporation.
Scientists are currently researching new ways to obtain energy from our natural, renewable
resources. Which statement gives the best explanation of the benefits of renewable resources.
Renewable resources generates energy that produces no greenhouse gases.
In a food web, arrows point at:
who gets energy.
Explain why the energy pyramid is typically shaped like a triangle.
Because energy decreases as it moves up the pyramid.
Which of the following is an example of COHESION?
water sticking to water
What has been a major human activity contributing to the release of stored CO2?
Burning fossil fuels
Which of the following best describes a benefit of non-renewable energy use?
The infrastructure to distribute and use this energy is already in place, therefore fewer surrounding environments need to be disturbed.
Mushrooms often grow around dead plants such as decomposing trees. They break down these dead organisms and put energy that stores in the plant back into the ground for other plants to use. What type of consumer are mushrooms?
decomposer
Discuss the impact of removing a top predator from an energy pyramid on the ecosystem.
It could lead to an overpopulation of prey species.
Water is a universal solvent because it...
Dissolves most substances
Summer solstice is the one day of the year with the most sunlight. Predict how extended hours
of sunlight on this day will impact the water cycle?
There will be an increase in evaporation.
Fossil fuels are involved in the carbon cycle and are currently our world’s primary sources of energy. Fossil fuels are formed from organic matter over the course of millions of years. There has been a growing concern about people's increased usage and dependence on fossil fuels. How has fossil fuel usage over time affected the carbon cycle?
Increased combustion of fossil fuels will lead to higher levels of carbon dioxide in the atmosphere.
Which of the following best describes the role of decomposers in an energy pyramid?
They recycle nutrients back into the ecosystem.
Evaluate the consequences of a decrease in the producer population on the energy pyramid.
It would decrease the energy available to all higher trophic levels.
The oceans are the Earth’s largest carbon reservoirs. What property of water allows the
oceans’ water to store carbon dioxide?
versatility as a solvent
What do trees do that helps balance the carbon cycle?
Absorb CO2
Renewable energy sources, such as solar energy, are often presented as a perfect solution to the complex problem of needing more energy for an expanding population. Which of the following best identifies an environmental cost associated with an increased use of solar energy?
The loss of natural resources used to make solar panels can lead to a decrease in the health of an ecosystem