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SCI Final (GATE)

True/False
Indicate whether the statement is true or false.
 

 1. 

According to the IPCC, from 1880 to 2012, global temperatures have increased by .85°C (1.53°F).
 

 2. 

According to graphs from the IPCC Summary for Policymakers, global temperatures have leveled off sinse 1998.
 

 3. 

According to the IPCC, global temperatures have significanly decreased sinse 1998.
 

 4. 

According to many graphs, CO2 levels have been increasing sinse 1850.
 

 5. 

According to the Climate Variation Hypothesis, global temperatures have been high and low throughout history.
 

 6. 

According to most climate scientist, global warming is not man made.
 

 7. 

According to the IPCC, if global warming is not stoped, entire nations could be wiped off the face of the Earth by rising sea levels.
 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 8. 

What is the function of a cell wall?
a.
to protect and support the cell
b.
to perform different functions in each cell
c.
to prevent water from passing through it
d.
to prevent oxygen from entering the cell
 

 9. 

What is the function of a cell membrane?
a.
to support the cell
b.
to perform different functions in each cell
c.
to control what enters and leaves the cell
d.
to form a hard outer covering for the cell
 

 10. 

Which organelle is the control center of a cell?
a.
mitochondrion
b.
ribosome
c.
nucleus
d.
chloroplast
 

 11. 

Which of the following best describes the function of mitochondria?
a.
They convert energy from food molecules into energy the cell can use.
b.
They store energy from food molecules.
c.
They store energy from sunlight.
d.
They produce nucleic acids that release energy.
 

 12. 

Which term refers to the diffusion of water molecules through a selectively permeable membrane?
a.
osmosis
b.
engulfing
c.
active transport
d.
passive transport
 

 13. 

Which term refers to physical characteristics that are studied in genetics?
a.
traits
b.
offspring
c.
generations
d.
hybrids
 

 14. 

Factors that control traits are called
a.
genes.
b.
purebreds.
c.
recessives.
d.
parents.
 

 15. 

What does the notation AA mean to geneticists?
a.
two dominant alleles
b.
heterozygous alleles
c.
at least one dominant allele
d.
one dominant and one recessive allele
 

 16. 

What does the notation Aa mean to geneticists?
a.
two dominant alleles
b.
two recessive alleles
c.
homozygous alleles
d.
one dominant allele and one recessive allele
 

 17. 

The different forms of a gene are called
a.
alleles.
b.
factors.
c.
masks.
d.
traits.
 

 18. 

An organism’s physical appearance is its
a.
genotype.
b.
phenotype.
c.
codominance.
d.
heterozygous.
 

 19. 

What happens during meiosis?
a.
Two sex cells combine.
b.
Chromosome pairs separate and are distributed into new sex cells.
c.
Each sex cell copies itself to form four new chromosomes.
d.
Chromosome pairs remain together when new sex cells are formed.
 

 20. 

When sex cells combine to produce offspring, each sex cell will contribute
a.
one fourth the number of chromosomes in body cells.
b.
half the number of chromosomes in body cells.
c.
the normal number of chromosomes in body cells.
d.
twice the number of chromosomes in body cells.
 

 21. 

A balanced arrangement of parts is called
a.
radiality.
b.
asymmetry.
c.
symmetry.
d.
bilaterality.
 

 22. 

An animal that has a backbone is called a(n)
a.
cnidarian.
b.
predator.
c.
vertebrate.
d.
invertebrate.
 

 23. 

Which of these is a function of spikes in a sponge?
a.
protect the sponge’s body
b.
to help the sponge reproduce
c.
to digest and distribute food
d.
to obtain oxygen
 

 24. 

What does the backbone surround and protect in a vertebrate?
a.
the heart and lungs
b.
vertebrae
c.
the spinal cord
d.
the gill slits
 

 25. 

When the temperature of the environment changes, the body temperature of a reptile
a.
changes.
b.
stays the same.
c.
always increases.
d.
always decreases.
 

 26. 

Fishes take in oxygen through their
a.
fins.
b.
gills.
c.
scales.
d.
vertebrae.
 

 27. 

If a fish’s swim bladder was destroyed, the fish would be unable to
a.
stabilize its body at different depths.
b.
eliminate excess oxygen.
c.
digest food.
d.
process body wastes.
 

 28. 

What characteristic is used to classify a mammal as a monotreme, marsupial, or placental mammal?
a.
the environment in which it lives
b.
how much hair or fur it has
c.
the structure of its brain
d.
the way in which its young develop
 

 29. 

Where does a placental mammal develop before its body systems can function independently?
a.
inside its mother’s body
b.
in a pouch on its mother’s body
c.
in a nest near its mother
d.
inside an egg that is protected by the mother
 

 30. 

What structure directs the activities of a cell?
a.
nucleus
b.
cytoplasm
c.
cartilage
d.
cell membrane
 

 31. 

Messages are carried back and forth between the brain and other parts of the body by
a.
respiratory tissue.
b.
nervous tissue.
c.
the circulatory system.
d.
digestive tissue.
 

 32. 

The process by which an organism’s internal environment is kept stable in spite of changes in the external environment is called
a.
healing.
b.
digestion.
c.
homeostasis.
d.
respiration.
 

 33. 

Which organ system makes blood cells?
a.
skeletal system
b.
nervous system
c.
circulatory system
d.
digestive system
 

 34. 

Which of the following is NOT a function of the skeleton?
a.
providing shape and support for the body
b.
obtaining oxygen
c.
protecting internal organs
d.
producing blood cells
 

 35. 

The bones that form the backbone are called
a.
vertebrae.
b.
metatarsals.
c.
tibia.
d.
carpals.
 

 36. 

How does exercise help maintain healthy bones?
a.
by decreasing the need for calcium in the bones
b.
by decreasing the need for phosphorus in the bones
c.
by making bones grow stronger and denser
d.
by making bones produce stronger outer membranes
 

 37. 

Which type of muscle is found only in the heart?
a.
voluntary muscle
b.
cardiac muscle
c.
smooth muscle
d.
soft muscle
 

 38. 

Exercise is important for muscles because it
a.
prevents muscles from becoming tired.
b.
helps maintain strength and flexibility.
c.
gives muscles more energy.
d.
prevents muscle injuries.
 

 39. 

When blood flows into the right atrium from the body, it contains
a.
little oxygen and a lot of carbon dioxide.
b.
a lot of oxygen and little carbon dioxide.
c.
a lot of both oxygen and carbon dioxide.
d.
little of either oxygen or carbon dioxide.
 

 40. 

Which chamber of the heart pumps oxygen-poor blood to the lungs?
a.
left atrium
b.
right atrium
c.
left ventricle
d.
right ventricle
 

 41. 

If a person’s blood lacked platelets, what process could not take place?
a.
carrying oxygen to cells
b.
carrying glucose to cells
c.
clotting of blood
d.
transfusing of blood
 

 42. 

A heart attack affects heart cells by
a.
cutting off blood flow and oxygen and causing cells to die.
b.
creating a buildup of fatty substances such as cholesterol within cells.
c.
destroying white blood cells.
d.
preventing the ventricles from contracting.
 

 43. 

What part of a neuron carries nerve impulses away from the cell body?
a.
axon
b.
synapse
c.
dendrite
d.
nucleus
 

 44. 

The thick column of nerve tissue that links the brain to most of the nerves in the peripheral nervous system is the
a.
brain.
b.
spinal cord.
c.
cerebellum.
d.
cornea.
 

 45. 

Which activity does your cerebrum control?
a.
remembering equations that you learn in class while taking a math test
b.
breathing as you sleep
c.
keeping your balance as you walk across a rocky seashore
d.
an increase in heart rate after running a race
 

 46. 

The brain and spinal cord make up the
a.
central nervous system.
b.
peripheral nervous system.
c.
somatic nervous system.
d.
autonomic nervous system.
 

 47. 

The three regions that make up the brain include the cerebrum, cerebellum, and
a.
senses.
b.
brain stem.
c.
spinal cord.
d.
retina.
 

 48. 

The nucleus of a cell does what?
a.
Sends materials throughout the cell
c.
Produces energy
b.
Directs the cells activities and reproduction
d.
Helps in osmosis
 

 49. 

What is diffusion?
a.
The process by which material travels through the cell wall
c.
To put out a flame
b.
The scattering of light
d.
The movment of particles from a high concentration to a low concentration
 

 50. 

What is osmosis?
a.
When water passes through the cell membrane
c.
The process of cell division
b.
A process of absorbing new information
d.
The name of Mr. Howe’s pet snake
 

 51. 

What is Meiosis?
a.
The process of copying the chromosomes of a cell to make a new copy of that cell
c.
A form of food
b.
The process of making new cells with exactly half the number of usual chromosomes. This is when the sex cells are made.
d.
One of the steps during Mitosis
 

 52. 

What is Mitosis?
a.
A special type of food
c.
The process of making new cells with exactly half he number of usual chromosomes. This is when sex cells are made.
b.
The process of copying the chromosomes of a cell to make a new copy of that cell
d.
One of the steps during Meiosis
 

 53. 

What is the difference between Alleles and Genes?
a.
Genes you wear and Alleles have to do with heredity
c.
Genes are the building blocks of cells while Alleles have to do with eye color
b.
Genes are the instructions that combine to make Alleles
d.
Genes are the dominant trait and Alleles the recessive trait
 

 54. 

What is the difference between genotype and phenotype?
a.
Genotype is the inherited combination of alleles and phenotype the inherited physical appearance
c.
Phenotype is the inherited combination of alleles and Genotype the inherited physical appearance
b.
A type of pants and ahirt
d.
No idea
 

 55. 

Which of the following is NOT found in animal cells?
a.
Cell Wall
c.
Lysosomes
b.
Cell Membrane
d.
Vesicle
 

 56. 

Which of the following is an example of an organelles?
a.
Mitochondria
c.
Vacuole
b.
Ribosomes
d.
All the above
 

 57. 

Which of the following describes Mitochondria?
a.
Orgenelles where proteins are made
c.
Where photosynthesis occurs
b.
cell organelles that break down food molecules to make energy
d.
Transports materials out of the cell
 

 58. 

What is an Invertebrate animal?
a.
animal without a backbone
c.
animal with a backbone
b.
animal with a tail
d.
none of the above
 

 59. 

What is a vertebrate animal?
a.
animal that has a pouch
c.
animal without a backbone
b.
animal that gives birth
d.
animal with a backbone
 

 60. 

What does symetrical refer to?
a.
a body with two similar halves
c.
the difference between Mr. Howe’s arms and legs
b.
a body without similar halves
d.
All the above
 

 61. 

What type of animal carries their young in a pouch?
a.
Carnivors
c.
Marsupials
b.
Invertebrates
d.
Placental Mammals
 

 62. 

What is the purpose of the Swim Bladder on a fish
a.
to hold urin
c.
a balloon like organ filled with gases to help the fish float
b.
to hold food
d.
to help the fish swim fast
 

 63. 

What does the vertebrate protect?
a.
internal organs
c.
spinal chord
b.
the brain
d.
Nothing. It just helps th body stay upright
 

 64. 

What is the purpose of the skeletal system?
a.
To protect your inernal organs
c.
To provide something for your musccels to attach to
b.
To provide support
d.
All the above
 

 65. 

Which type of muscel is found in the heart?
a.
connective tissue
c.
cardiac muscel
b.
tendon
d.
smooth muscel
 

 66. 

What are the four types of tissue that the human body is made of?
a.
nervous tissue, heart tissue, organ tissue, brain tissue
c.
organ tissue, muscel tissue, cardiac tissue, connective tissue
b.
epithelial tissue, nervous tissue, muscel tissue, connective tissue
d.
none of the above
 

 67. 

Which of the following is made up of cells that can contract and relax?
a.
skeletal tissue
c.
connective tissue
b.
muscel tissue
d.
nervous tissue
 

 68. 

The organ system that provides support and protection for the body parts is the...
a.
endocrine system
c.
skeletal system
b.
circulatory system
d.
integumentary system
 

 69. 

How many chambers are in the heart?
a.
2
c.
1
b.
4
d.
none
 

 70. 

Which atrium receives oxygen-poor blood from the body?
a.
Left Atrium
c.
Left Ventricle
b.
Right Atrium
d.
Right Vantricle
 

 71. 

Blood enters the heart from the body into what part?
a.
Left Atrium
c.
Left Ventricle
b.
Right Atrium
d.
Right Ventricle
 

 72. 

Oxygen rich blood enters the heart from the lungs into what chamber?
a.
Left Atrium
c.
Left Ventricle
b.
Right Atrium
d.
Right Ventricle
 

 73. 

Oxygen rich blood leaves the heart to the body from which chamber?
a.
Right Atrium
c.
Left Vantricle
b.
Left Atrium
d.
Right Ventricle
 

 74. 

Information is transfered to other cells by a long fiber called what?
a.
dendrite
c.
axons
b.
neurons
d.
impulse
 

 75. 

Cells that transfer messages throughout the body in the form of electrical impulses are what?
a.
impulses
c.
dendrites
b.
neurons
d.
axons
 

 76. 

Which part of the nervous system controls all functions of the body?
a.
spinal chord
c.
heart
b.
brain
d.
neurons and axons
 

 77. 

Which part of the brain is responsible for memory and thinking?
a.
cerebrum
c.
medulla
b.
cerebellum
d.
all the above
 

 78. 

Which part of the brain allows the brain to track the body’s position and receives sensory impulses?
a.
medulla
c.
cerebrum
b.
cerebellum
d.
brain stem
 

 79. 

The part of your brain that connects to the spinal chord is...
a.
cerebellum
c.
medulla
b.
cerebrum
d.
mid-brain
 

 80. 

In the eye, light is detected by cells at the back of the eye in a layer called ___________.
a.
The Retina
c.
The Optic Nerve
b.
The Cones
d.
The lens
 

 81. 

The colorful part of the eye is called the_____________.
a.
retina
c.
iris
b.
pupil
d.
rods
 

 82. 

The semi-clear oval shaped part of the eye that light passes through is called the______.
a.
photoreceptors
c.
lens
b.
iris
d.
rods
 

 83. 

Which part of the brain regulates blood pressure?
a.
spinal chord
c.
cerebellul
b.
cerebral hemisphere
d.
medulla
 

 84. 

Why does Mr. How resemble popeye, with big arms and little chicken legs?
a.
because of a deformation at birth
c.
because his body was pieced together like frankenstein
b.
because he has DNA of both a human and chicken
d.
All of the above (This is the correct answer!)
 

 85. 

How do clouds influence computer predictions of future temperatures?
a.
Computers need to know how to treat clouds, so depending upon what it is told, will affect global temperature predictions
c.
The amount of cloud cover will only produce positive-feedback. So, computers need to know cloud cover to determine the amount of global temperature increaases.
b.
clouds have no effect on computer predictions. It is more about climate sensitivity.
 

 86. 

How do clouds affect climate?
a.
Clouds warm the climate by reflecting heat from the Earth back down to the Earth causing increased temperature
c.
Clouds both cool things down and heat things up
b.
Clouds reflect heat from the sun back to space and let some energy in
d.
All of the above
 

 87. 

If clouds are causing temperatures to go down, causing global cooling, they are said to have a _________-__________.
a.
Positive-Feedback
c.
warming-effect
b.
Negative Feed-Back
d.
thermal-feedback
 

 88. 

If clouds are causing temperatures to go up, causing global warming, they are said to have a ________-________.
a.
Positive-Feedback
c.
Thermal-degradation
b.
Nagative-Feedback
d.
Negative-reaction
 

 89. 

How sensitive the climate is to carbon dioxide is called what?
a.
CO2 Doubling
c.
Dioxide Sensitivity
b.
Carbonation
d.
Climate-Sensitivity
 

 90. 

According to the IPCC, temperatures are predicted to increase from ____°F to ____°F by the year 2100.
a.
2.7°F to 8.64°F
c.
-.5°F to 2.0°F
b.
15°F to 25°F
d.
25°F to 35°F
 

 91. 

Sinse 1998 global temperatures have ___________ while CO2 levels have continued to climb.
a.
continued to climb
c.
basically flatlined
b.
significantly decreased
d.
impossible to determine
 

 92. 

According to the Greenhouse Hypothesis, CO2 and other greenhouse gases_________.
a.
resease heat causing global cooling
c.
have no affect on climate
b.
absorb heat causing the climate to warm
d.
only slightly effect climate
 

 93. 

According to the IPCC, CO2 levels have a direct relationship to___________.
a.
global temperatures
c.
ocean currents
b.
the amount of oxygen in the air
d.
None of the above
 

 94. 

According to the Climate Variation Hypothesis, sinse 1998 CO2 levels have continued to climb without any significant temperature increases is evidence that __________.
a.
the globe is warming
c.
that their may not be a significant connection between CO2 levels and global temperatures
b.
the globe is cooling
d.
None of the above
 

 95. 

The Climate Variation Hypothesis says...
a.
global warming is caused by human production of CO2 and other greenhouse gases.
b.
global changes in temperature are primarily caused by solar variablitity and natural changes in cloud cover, ocean currents, and other natural variables
 

 96. 

The Greenhouse and Carbon Dioxide Hypothesis says that...
a.
global warming is caused by human production of CO2 and other greenhouse gases.
b.
global changes in temperature are primarily caused by solar variablitity and natural changes in cloud cover, ocean currents, and other natural variables
 

 97. 

According Bjorn Lomberg, climate expert, though he agrees with much of what the IPCC says about climate change, feels that media, many politicians, and other special interest groups are...
a.
being accurate with regard to telling the American people the facts about climate predictions
c.
often exagerate and dramatize reports of global climate predictions
b.
are being completely dishonest about their coverage of global climate predictions
d.
are simply reporting what they hear from the IPCC
 

 98. 

IPCC stands for....
a.
International Panel on Climate Change
c.
Intergovernmental Panel on Climate Change
b.
Independent Panel on Climate Change
d.
None of the above
 

 99. 

According to Bjorn Lomberg, climate expert, though he thinks CO2 and global warming is a problem and is man-made, he also thinks that...
a.
should increase gas taxes to stop people from driving so much
c.
should convert to electricity and other non-gas related form of transportation
b.
are making the best choices possible in regard to global warming
d.
we are spending money on things that do little to no good to fix the “Global Warming Problem”
 

 100. 

According to Bjorn Lomberg, climate expert, we should be spending more money on ________ and less money on feel good solutions that are not really doing any good.
a.
ways to reduce CO
c.
alternate forms of transportation
b.
convincing China and India to reduce CO2 output
d.
research and development of better and cheaper green technology
 

Essay
 

 101. 

In your oppinion, what was your favorite:

1) Classroom Experiment–

2) Field Trip–

3) Science Project—

4) Dissection
 



 
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