Name: ________________________________________________ Date: ____________ Period: ______
Final Exam Study Guide: Answer Key
Unit 3
1. What is the Greenhouse Effect?
Greenhouse Effect: The rise in temperature that the Earth experiences because greenhouse
gases in the atmosphere trap heat from the Sun’s rays.
2. What are the benefits to the Greenhouse Effects?
The greenhouse effect keeps the Earth warm enough for humans to live.
3. When scientists describe climate change, what do they mean?
When scientists describe clime change, they are referring to any long-term change in
Earth’s climate, or in the climate of a region or city. This includes warming, cooling, and
other changes besides temperature.
4. What are the two main causes of Global Climate Change?
1. Increase in greenhouse gases
2. Increase in greenhouse effect
3. Humans Releasing Carbon Dioxide by burning fossil fuels
4. Destruction of forests
What are the effects of Global Climate Change?
1. Raising Sea Levels-Flooding
2. Melting Of Glaciers, Artic Shrinkage
3. Altered Patterns Of Agriculture
4. Increase In Extreme Weather Events
5. Increase Evaporation
6. Expansion Of Tropical Diseases
7. Changes In Timing Of Seasonal Patterns In Ecosystems
8. Acidification Of Oceans
Name: ________________________________________________ Date: ____________ Period: ______
9. Increase In Respiratory And Cardiovascular Diseases
10. Use the graph below to answer the following questions
11. What is the trend of carbon dioxide emissions over 1964-2008?
Carbon dioxide emissions have continued to increase over the years of 1964-2008.
12. What is the overall trend in temperature change over 1964-2008?
The temperature change has steadily increased over the years of 1964-2008.
13. From 1968-1976, the global temperature declined. What are two possible
explanations for this?
There was an observation error.
This was a relatively small yearly decline in temperature possibly caused by a volcanic
eruption.
14. What is the urban heat island effect?
The term "heat island" describes built up areas that are hotter than nearby rural areas.
15. What is light pollution?
Name: ________________________________________________ Date: ____________ Period: ______
Light pollution is the side effect of the human-generated lighting created in industrial
civilizations.
In the table below, define the 4 main impacts of light pollution and draw a picture to
represent each one.
Light
Definition
Picture
Pollution
Sky Glow
Defined as light wastefully escaping into the
night sky. The light over urban or suburban
communities that result as a consequence
have considerably changed the clarity of the
night sky view and interfere with scientific
observation of the stars.
Glare
Light shining dangerously into people's
eyes, causing viewing discomfort and
reduced night vision that can play a part in
roadway accidents.
Light
Refers to light from a source directed
Trespass
towards an adjacent property or lighting of
an area that would otherwise be dark.
16. How was Lake Mead created?
Lake Mead was created by the Hoover Dam
17. Why was Lake Mead created?
Stores Colorado River water for delivery to farms, homes, and businesses. Prevents
flooding during the spring thaw. Provided Jobs during the Great Depression.
18. Where does most of the water in Lake Mead come from (include both the river, and the
source of the river’s water)?
Snow melt from the Rocky Mountains
Name: ________________________________________________ Date: ____________ Period: ______
19. How is the majority of the water in the Colorado River used? Agriculture (70%)
20. Describe three ways you can limit your impact on the environment?
1. Carpool
2. Unplug electronics
3. Reduce water usage
Unit 4
How do we know if something is living? Name the 5 characteristics of life.
1. Organization
2. Grow and develop
3. Reproduce
4. Respond to their environment
5. use energy
Name 3 parts of the cell theory.
1. All living things are made of cells
2. The cell is the most basic unit of structure and function in a living thing
3. All cells come from other cells
List 3 characteristics of unicellular and multicellular organisms. Define and give an 3
examples of each.
Unicellular
Multicellular
1. One cell does everything
1. Many cells
2. Short life because of heavy work load
2. Only certain cells are on the outside
3. Injury of one cell may cause death
3. Longer life because of lighter load
Name: ________________________________________________ Date: ____________ Period: ______
Unicellular organism: a living thing made of only one cell.
Multicellular organism: a living thing made up of more than one cell
Match the structure to its function.
1. Chloroplast
2. Vacuole
H
G
B. Power Generator
3. Endoplasmic reticulum
4. Mitochondria
5. Nucleus
A. Copy of blue prints, control center
F
B
C. Conveyer belt
D. Trash can
A
E. Rigid support
6. Golgi Body (apparatus)
7. Lysosomes
D
8. Cell Wall
E
C
F. Packaging and Shipping
G. Storage
H. Kitchen
Define asexual and sexual reproduction.
Asexual reproduction: Reproduction that requires one parent and the offspring has
identical DNA to the parent
Sexual reproduction: Reproduction that requires two parents and the offspring has a mix of
both parents DNA.
Give an advantage and a disadvantage of asexual and sexual reproduction. Give 2 examples
of each.
Asexual Reproduction
Sexual Reproduction
Advantage:
Advantage: Offspring have different DNA, so
Much faster
they are more likely to respond to changes in
A lone individual can create a new
the environment.
population in a new territory
_____________________________________________________
Name: ________________________________________________ Date: ____________ Period: ______
_____________________________________________
Disadvantage:
Disadvantage:
Offspring are identical
Much slower
Example:
Example:
Hydra
Bison
Example:
Example:
Bacteria
Hippo
Label the parts of the flower.
Word Bank: petal, sepal, ovules, ovary, pollen tube, pollen, stigma, anther, style, filament
After the ovules are fertilized, what happens to the ovary? The ovary becomes a fruit.
List three ways that animals help disperse fruit and seeds?
1. Eat fruit and excrete seeds at a later time
2. seeds get attached to their fur
3. Animals bury seeds to be eathen later, but don’t return to eat the seed
Name: ________________________________________________ Date: ____________ Period: ______
Explain the difference between genetic and environmental factors. Give an example of
each.
Genetic factors are coded by the DNA while environmental factors are dictated by the
organisms surroudnign environement.
Example of genetic factor: Hair color
Example of environmental factor: Amount of water or temperature.
Unit 5
1. Write down the 8 level of organizational of our body in order from smallest to largest.
1.
2.
3.
4.
5.
6.
7.
8.
Atom (smallest)
Molecule
Organelle
Cell
Tissue
Organ
Organ System
Organ system (largest)
9. Give an example of a unicellular organism. Bacteria
10. Why do multicellular organisms have various level of organization in them?
Specialized cells can complete specific cell processes.
11. Give 3 examples of multicellular organisms.
1. Orangutan
2. Dingo
3. Anteater
12. Name the 4 main jobs of the skeletal system.
1. Structure
2. Support
3. Produce blood cells
4. Allow for movement
Name: ________________________________________________ Date: ____________ Period: ______
13. Name any 5 organs of the digestive system.
1. Stomach
2. Esophagus
3. Large Intestine
4. Gall Bladder
5. Small Intestine
14. Which organs allow nutrients to be absorbed?
1. Small Intestine
15. Name 1 organ in the digestive system never sees any food? Liver
16. Name the 3 parts of the Nervous System.
1. Brain
2. Spine
3. Nerves
17. What is the function (job) of the brain in the Nervous system?
Controls the central nervous system
18. Define “Short Term” Memory. Memory that is available for a short period of time
19. Define “Long Term” Memory. Memory stored holding, and manipulating over a longer
period of time
20. Neurons carry electric signals called impulses from one part of the body to another.
21. Match the structure with its function.
A. Gives the body support and shape, movement, and makes red blood cells. Skeletal
system
B. Breaks down food into nutrients for the body. Digestive System
C. Sends messages throughout the body. Nervous system
Name: ________________________________________________ Date: ____________ Period: ______
D. Supplies the blood with oxygen and removes carbon dioxide waste from the body.
Respiratory system
E. Provides movement for the body, attached to bones. Muscular system
22. A person takes a sight test and a sound test, with the results shown below. What is the
most reasonable conclusion that can be drawn from this data?
The person responds faster to a sight stimulus
_____________________________________________________________________________
23. Which sensory organ responds to stimuli the fastest? Eyes
24. If you have an asthma attack, how can that affect the digestive system? The cells in the
digestive system may not get enough oxygen to break down the food.
25. If a person has Spinal Muscular Atrophy (SMA) which attacks the never cells, how will it
affect their skeletal and muscular systems?
The nerve cells will not be able to transmit messages to the skeletal and muscular system
causing paralysis
26. What day is your Final Exam? ____________________
Name: ________________________________________________ Date: ____________ Period: ______
27. How long do you plan on studying for the Final Exam?
Not long enough
28. What grade do you predict you will earn on this Final Exam? Explain your answer.
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