Climate Change Unit 2 Homework Questions
Slow changes to ecosystems may cause the displacement or loss of many species.
False
Beef has __________ carbon emissions than chicken.
Higher
The __________ is defined as all the living organisms on Earth along with the physical environment in which they live.
biosphere
The abundance of these gases can lead to __________________________ of the climate of the planet, playing an important role in maintaining the ____________ within a range that supports life.
both warming and cooling; climate
One of the most significant contributor to climate changes is the level of __________ found in the atmosphere.
gases
-A metabolic process -Used by plant cells
Both Photosynthesis and Cellular Respiration
In the United States, the average _______________ has increased by 4% during the last century.
Perception
How much has Earth's mean surface temperature increased since the 1980s due to the increased global concentration of greenhouse gases in the atmosphere?
1.8°F
The products of the light reactions of photosynthesis used by the Calvin cycle are _________ and NADPH.
ATP
There are currently _____________ of people on the planet and each one has basic needs.
Billions
Directly attributed to human activities (Global Warming/Climate Change/Both)
Both
What is the role of carbon dioxide in photosynthesis?
Carbon dioxide is reduced to a sugar during photosynthesis.
Light energy is captured and transferred to electrons within the chlorophyll.
Light Reactions
Locally grown produce has _______________ carbon emissions than produce grown in different regions and shipped across the world.
Lower
_______________ is a waste product and is released back into the atmosphere.
Oxygen
The levels of carbon dioxide
Prior to the 1950s had stayed below 300 ppm
The major ____________ that take up carbon are the oceans, fossil fuels, and the atmosphere.
Reservoirs
Climate change can alter where species live, how they interact, and the timing of biological events.
True
Overfishing is an example of ____________________.
human activities
The _____________ concentration of hydrogen ions results in a ______________ of the pH of the aqueous environment.
increased; lowering
This change of the water's ___________ is due to the ability of carbon dioxide to readily dissolve in water.
pH
Carbon dioxide, one of the most important greenhouse gases, makes up __________________ of Earth's atmosphere.
A small concentration
Worldwide phenomenon (Global Warming/Climate Change/Both)
Both
CO2 is captured and converted to glucose.
Calvin Cycle
This process uses ATP and NADPH to produce sugars.
Calvin Cycle
Threat 2, _______________, due to high temperatures, causes the coral to expel algae.
Coral Bleaching
In central and northeast parts of the United States, precipitation has ________________
Increased
When fossil fuels are burned, they will __________.
Produce large quantities of carbon dioxide that is released in the atmosphere. This will increase the effects of climate change.
Drought, heat waves, spread of diseases, habitat loss, and extinction are all impacts of __________ __________ at the individual and species level of biological organization.
climate change
Threat 1, ______________, are impacting coral reef ecosystems by out-competing native reef animals.
Invasive Species
Ocean Acidification effects
-It prevents organisms from being able to calcify their skeletons and shells. -Causes reduction in corals and shellfish, making it more difficult for fishes to find shelter and food. -It dissolves the existing shells and skeleton of organisms, which reduces their chances of surviving and reproducing.
following activities have affected the levels of carbon dioxide in the atmosphere since the 1950s?
Deforestation and Burning fossil fuels
-Produces Light energy
Neither Photosynthesis and Cellular Respiration
Plants, protists, and some bacteria remove carbon dioxide from the atmosphere and synthetize organic compounds through the process of _______________
Photosynthesis
-Occurs inside the chloroplast -A pathway for building sugar -Reactants are carbon dioxide and water -Products are glucose and oxygen -Dependent of light
Photosynthesis only
_________________ global temperatures affect both their reproductive potential and their ability to increase their __________________.
Rising; Geographical Range
Since the 1950s, ____________________ have increased the number of greenhouse gases in the atmosphere, which is having an adverse impact on the climate of the planet.
human activities
Scientists have been recording increased levels of carbon dioxide. The increased levels are due to
humans burning fossils fuels. Carbon that was formerly sequestered in reservoirs is now being released into the atmosphere at an alarming rate.
Which of the following accurately describe how climate is affecting species across the planet? Select all that apply.
-Environmental conditions in habitats are rapidly changing beyond what some species can tolerate. -Habitats are being lost and are affecting species abundance. -As habitats change, species are moving to areas in which they have not previously been found. -Habitats are changing more rapidly than species are able to adapt, potentially leading to their extinction.
The term __________________ is used to describe a usable power, such as heat or electricity, that comes from an energy source that _______________ require the use of _________________ such as oil or natural gas.
Alternative Energy; does not; fossil fuels
A major effect on planet Earth due to the increase in atmospheric carbon dioxide is
An increase in global atmospheric and surface temperatures
Which of the following choices explains how anthropogenic climate change differs from naturally occurring changes to the climate?
Anthropogenic climate change occurs at such a rapid pace it is leaving organisms less time to adapt to their changing environment.
A _____________________ is a calculation of the amount of carbon emission that are ________________ released into Earth's atmosphere by the actions an entity takes to acquire those basic needs.
Carbon Footprint; Directly or Indirectly
In relation to the carbon cycle, why is photosynthesis an important metabolic process to organisms on the planet? -Carbon dioxide is converted to lipids. The lipid products of photosynthesis are used as building blocks for cell membranes by the plants, and by organisms that either eat plants or eat organisms that eat plants. -Carbon dioxide is converted to sugar. The sugar products of photosynthesis are used as energy by the plants, and by organisms that either eat plants or eat organisms that eat plants. -Carbon dioxide is converted to sugar. The sugar products of photosynthesis are used as the building blocks for DNA by the plants, and by organisms that either eat plants or eat organisms that eat plants. -Carbon dioxide is converted to amino acid. The amino acid products of photosynthesis are used as the building blocks for proteins by the plants, and by organisms that either eat plants or eat organisms that eat plants.
Carbon dioxide is converted to sugar. The sugar products of photosynthesis are used as energy by the plants, and by organisms that either eat plants or eat organisms that eat plants.
Which of the following properties provides an accurate reason as to why carbon is important to living organisms? - Carbon has the ability to form weak bonds with other elements and functional groups. - Carbon has the ability to bond up to three times with other atoms. - Carbon has the ability to form long chains and complex ring structures that play an important role in forming large molecules. - Carbon reacts only with other carbon atoms and does not react with other elements.
Carbon has the ability to form long chains and complex ring structures that play an important role in forming large molecules.
Living things release carbon dioxide into the atmosphere through the process of ______________________, during the breakdown of organic materials.
Cellular respiration
following changes in a biome may lead to desertification
Changes in temperature Rising sea levels Removal of natural vegetation Increase in precipitation
Example: Historically, Aedes aegypti were found along the _______________ of the United States but have since move into _______________ and are accessing new hosts. As they expand to more areas where they previously were not, diseases such as dengue fever, West Nile, and chikungunya are ______________ in these areas.
Coastal Areas; Higher Altitudes; Being Reported
Based on projections made by scientists studying climate change, if human activities continue to impact climate at the same rates as today, what will most likely be the future of the level of biological organization in ecosystems across the planet?
Human activities will have serious impacts on climate and on the levels of biological organization in ecosystems across the planet.
Common vectors, such as _____________ and ticks, acquire nutrients typically through their _____________ Correctand pass on diseases while drinking the host's __________. But, these vectors are typically limited to __________ areas, which are necessary for them to reproduce.
Mosquitos; bite; blood; warm;
-Photosynthesis produces oxygen, which allows other organisms to conduct cellular respiration. -Photosynthesis is a process in which chemical energy is converted into kinetic energy. -Photosynthesis produces sugars, which are used as an energy source by plants and other organisms.
Select all of the following statements that correctly describe photosynthesis.
Across the globe, the average _______________ has nearly doubled in the last 50 years.
Temperature
To adjust to changes in ______________ some plant and animal species will migrate to cooler locations, whereas others will become extinct.
Temperature
two (2) main factors used to determine the climate of a region -Temperature -Presence of a mountain range -Species that occupy an area -Rainfall -Presence of a large body of water
Temperature; Rainfall
The inputs of the light reactions of photosynthesis are ____________ (inorganic molecule), ADP, and ______________ (electron carrier).
Water; NADP+
One consequence of climate change is change in temperature and precipitation patterns, which results in
an increase in the severity and frequency of droughts and heat waves.
As the ocean acidifies, the amount of carbonate ______________, and organisms, such as crabs and clams, have a hard time forming shells.
decreases
By increasing the levels of carbon dioxide and other greenhouse gases in the atmosphere, the natural ______________________ is amplified, causing the temperature of the Earth's atmosphere, ocean, and land surface to __________.
greenhouse effect; rise
This product of the reaction is able to release __________ ions into the watery solution.
hydrogen
With __________ energy needs still being supplied by ___________________, now more than ever do these daily personal choices make a significant difference for the future of our planet.
large scale; fossil fuels
Beef has __________ carbon emissions than pork.
Higher
Increased ______________ levels in the atmosphere have contributed to _______________ of the oceans.
Carbon dioxide; Acidification
Hence, the footprint is used to measure the impact the entity is having on ____________________
Climate Change
Includes changes in the average temperature and precipitation (Global Warming/Climate Change/Both)
Climate Change
______________________ creates new risks for humans because of its potential for exposing ____________________ diseases, or diseases in which an infectious agent is spread from one organism to another.
Climate Change; Vector Borne
Confined to only one area of the planet, climate change is only affecting species with a low tolerance for changes in their environment.
False
Due to changes in temperature, heat waves _______________ across the United States.
Increased
The energy released by energized electrons is used to produce ATP and NADPH.
Light Reactions
What is the role of light during the light reactions of photosynthesis?
Light energy is absorbed and used to excite electrons in the pigment molecules.
Today, our modern society requires ________________ per person than at any point in the history of our species
More energy
Climate change can overwhelm the capacity of ecosystems to lessen the effects of extreme events and disturbance, such as desertification, floods, coral bleaching, and drought.
True
Which of the following describes the principal role of photosynthesis in the carbon cycle? -Using energy from the sun, plants convert carbon dioxide from the atmosphere into chemical energy of sugars. -Using energy from the sun, plants convert sugars into kinetic energy. -Using energy from the sun, plants convert carbon dioxide from the soil into chemical energy of sugars. -Using energy from the sun, plants convert carbon dioxide from the atmosphere into kinetic energy.
Using energy from the sun, plants convert carbon dioxide from the atmosphere into chemical energy of sugars.
The light reactions of photosynthesis take place _______________________________
in the thylakoid membrane
A lionfish captured in the Gulf of Mexico is an example of ___________________.
invasive species
-Occurs inside the mitochondria -A pathway for breaking down sugar -Reactants are glucose and oxygen -Products are carbon dioxide and water -Used by plants and animals cells -Independent of light
Cellular Respiration Only
In the west and southeast parts of the United States, precipitation has _________________
Decreased
Diary has ____________ carbon emissions than vegetables.
Higher
A gradual increase in the overall surface temperatures of Earth (Global Warming/Climate Change/Both)
Global Warming
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. -Greenhouse gases absorb gamma radiation emitted by the planet's surface. This trapped heat energy is released slowly back into the atmosphere. -Greenhouse gases help to disperse solar radiation evenly across the planet. -Greenhouse gases found high in the atmosphere cool the planet's surface by allowing heat to rise higher in the atmosphere than do other planets.
Greenhouse gases absorb infrared radiation emitted by the planet's surface. This trapped heat energy is released slowly back into the atmosphere.
The source of all carbon in living organisms is _____________, which cycles from the atmosphere and water into _____________ and eventually into other living things.
carbon dioxide; plants
When carbon dioxide interacts with water it forms
carbonic acid
