Exam 2 1063 bio quiz questions/iclicker questions

Which statement below best summarizes the overall purpose of the light-dependent reactions?

The light-dependent reactions capture the energy from the sun and transfer it to high-energy molecules.

Methane versus carbon dioxide are very important greenhouse gases. However, methane can retain and release about ____ times more heat than carbon dioxide.

30

Even though there are alternate energy sources, fossil fuels are used for approximately ______ of the United States energy needs.

80%

Fossil fuels are used for approximately ______ of the United States' energy needs.

80%

What is an invasive species?

A species that has been introduced outside of its range

Plants exchange carbon most often with which of the following ?

Carbon in the atmosphere

Which of the following contributes the most to climate change?

Cattle

Carbon cycle:Which of the following processes release CO2 into the atmosphere?

Cellular respiration volcanic activity burning of fossil fuels

Scientists studying global warming have noted an unusual trend in carbon dioxide level. Which of the following statements explains the trend of carbon dioxide in the atmosphere?

The rise in carbon dioxide levels have occurred relatively rapidly.

Which part of solar energy is important in photosynthesis?

The visible light spectrum

Desert biomes are characterized by

cactus

Which of the following terms, encompasses all the others?

climate change

Lionfish have been introduced to the Caribbean where they are not native and have impacted the natural food chain. This is an example of a negative impact at the

community level

In the carbon cycle, the process of photosynthesis ______ atmospheric CO2, and cellular respiration ______ atmospheric CO2.

consumes; produces

Coal is a fossil fuel that results from pressure being exerted on plant and animal decay for millions of years. Oil and natural gas are also fossil fuels except they

formed from microscopic plants and animals.

A carbon atom can form a max of up to _______ bonds with other atoms.

four

Carbon cycles naturally between

geologic and atmospheric reservoirs and living organisms.

One way to remove excess carbon dioxide from the atmosphere

is through reforestation.

How will climate change impact the vectors that carry disease?

it will allow vectors to expand their ranges

Which of the following is a vector for malaria?

mosquitos

Carbon sinks are reservoirs that hold large amounts of carbon. Which of the following are considered to be carbon sinks?

oceans

The light reactions of photosynthesis occur within the ______ of the chloroplast and the Calvin cycle reactions occur within the ______ of the chloroplast.

thylakoid; stroma

The way the wolf populations impact Yellowstone Np is an example of a __________ stusdy.

Ecosystem

which of the following does not describe carbon?

It is released into the atmosphere by photosynthesis.

The worldwide increase in average surface temperatures of Earth is called __________.

global warming

Which of the following can decrease carbon dioxide in the atmosphere?

Increase in photosynthesis decrease in carbon emissions increase in the use of alternative energy sources(solar panels)

How would you describe the climate in the southeastern U.S?

Wet and warm

When it comes to the carbon footprint, because of its required usage of land, ______ is the most costly food source.

beef

Which fossil fuel is generated from the remains of plants that died 300 million years ago?

coal

Which source of alternative energy relies on heated water close the Earth's surface and is used to supply 90% of the electricity needs in Iceland?

geothermal

______ is a product of photosynthesis and is a carbon-based molecule that is the chief source of energy for most organisms.

glucose (sugar)

The use of fertilizers contributes to which greenhouse gas to the atmosphere?

nitrous oxides

Which of the following sources of alternative energy involves using uranium or other materials to split the nucleus of an atom?

nuclear energy

Which of the following is an alternative energy source?

solar power

What are most plants green?

Because they reflect green light

What's the main building block for the growth of trees over time?

Carbon

How does the greenhouse effect work?

Energy from the sun reaches and warms the earth Greenhouse gases traps heat that bounces off the surface of the earth it maintains temperatures on earth that support life

Which of the following statements correctly explains the greenhouse effect?

Greenhouse gases absorb infrared radiation emitted by the planet's surface. This trapped heat energy is released slowly back into the atmosphere.

The major sources of this greenhouse gas are agriculture and the decay of organic material.

Methane

Why do you think the US doesn't use more wind and solar energy

More expensive to produce than fossil fuels

Which of the following is an example of a vector

Mosquitoes

Which of the following is the definition of a community?

Populations of different species living in the same area.

Which of the following is true of carbon?

Released by burning fossil fuels highest emissions by humans greenhouse gas

Which energy source is the most expensive?

Solar power

Which of the following levels of biological organization represents the sum of all the locations where life may be found on the planet?

The biosphere

As climate change continues, which of the following is likely to occur?

vectors will expand their ranges. the number of invasive species will increase. more plants and animals will go extinct.

The most abundant greenhouse gas in the atmosphere is

water vapor

Which of the following statements is true of a value-returning function?

A study measuring the levels of oxygen, carbon dioxide, and trace gases in the atmosphere over different seasons

What is the most common greenhouse gas emission?

Carbon dioxide

Which of the following is an example of how climate change impacts communities?

Changes in the food web due to the introduction of an invasive species

Which of the following utilizes heat from deep in the earth?

Geothermal energy

As global temperatures increase, which of the following scenarios are most likely to happen?

Glaciers and snow coverage decrease.

The production of carbonic acid occurs as a result of increased carbon dioxide concentrations in which of the follwoing?

Oceans

Which of the following is not an input for photosynthesis

Oxygen

Within chloroplast there are __________ that absorb light energy from the visible spectrum.

Pigments

CO2 is an input into the

calvin cycle

Fires and volcanic activity are natural events that produce _____.

carbon dioxide

The measure of the impact on climate change by a person or a company is known as their

carbon footprint

Which of the following is not evidence for climate change?

Decrease in ocean temperatures