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The International Schools

of Choueifat – Egypt

Term 1 Final revision

13-14

Level G

AK Science

Name: _______________________

Class: ________________________

Chapter 1:

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Section 1.1:

1-The skeleton is made up from

A. Cartilage

B. Muscles

C. Bones

D. A and C

2-These are the functions of the skeletal system except

A. Protection

B. Supply oxygen to the body

C. Movement

D. Support

3- What are the bones of the leg?

Tibia-Fibula-Femur

4- from the functions of the bone marrow

A. Stores fat

B. Produce new blood cells

C. All of the above

D. None of the above

5- These are different kinds of bones except

A. Joints

B. Short bones

C. Long bones

D. Flat bones

E. All of the above

6-what is the importance of fixed joints?

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Not allowing the bones to move

7- which is a type of movable joints?

A. Pivot joint

B. Bone marrow

C. Fixed joint

D. Hinge joint

E. A and D

8- Name the 3 different types of muscles.

Skeletal muscles-Smooth muscles-Cardiac muscles

9-why do skeletal muscles work in pairs?

Because they can only pull.

Section 1.3:

1-what are the parts of circulatory system?

A. Heart-blood-blood vessels

B. Heart –R.B.C-W.B.C

C. Blood-plasma-platelets

D. None of the above

2-Trace the path of blood in the human body

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Bodyupper right chamberlower right chamberlungsupper left

chamberlower left chamberbody

3-what is being exchanged in the circulatory system?

Carbon dioxide and wastes with oxygen and nutrients

4-The component of the blood that is fighting a disease is white blood

cells.

5-what are the types of blood vessels and state the function of each?

1. Arteries—carries blood away from heart

2. Veins—carries blood back to heart

3. Capillaries—dissolved materials pass through its walls

6-which is the thinnest blood vessel?

Capillary

7-Trace the path of air in the respiratory system.

Mouth or nose—throat—trachea—bronchi—alveoli (lungs)

8-What is exchanged in the Respiratory system?

Carbon dioxide and oxygen

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9-Diaphragm muscle belongs to which systems.

A. Circulatory &respiratory

B. Muscular &respiratory

C. Skeletal &respiratory

D. None of the above

10- When we inhale the diaphragm

Is pulled down ,the lungs expand

While when we exhale the diaphragm moves upwards and lungs are

squeezed.

Chapter 2 :

Section 2.1:

1-The dimples are a kind of physical inherited trait

2-The temperature of your body is a kind of functional inherited trait.

3-Handedness is a behavioral inherited trait.

4-All inherited traits pass from parents to offspring.

5-Acquired traits are picked through learning or from environment.

6-The brown color of a leaf is an acquired trait affected by environment.

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7-Riding a bike is a trait affected by learning.

Section 2.3:

1-Adaptation is

A. When living things interact with nonliving things

B. Everything in the environment

C. The same organisms living together in the same place

D. A trait that helps the organism survive in its environment

2-Why do animals and plants have physical adaptation?

A. To get food and water

B. To avoid enemies

C. To reproduce

3-All are examples of physical adaptation to get food and water EXCEPT

A. Owls have fringed wings

B. Cactus has a thick fleshy skin

C. Snakes have unhinged jaws

D. Color of cicada and tree trunk

4-Mimicry is a kind of physical adaptation to

A. Get food

B. Avoid enemies

C. Reproduce

5-An example of camouflage is the color of Cicada when it is

camouflaged

Against the tree trunk

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6-Give example of a warning coloration as a physical adaptation to avoid

enemies.

The blue color of poison dart frog warns its enemies that it is poisonous.

7-An example of physical adaptation

To reproduce ,Dandelions seeds are attached to a parachute-like

structure to be easily carried by wind.

8-State weather physical or behavioral adaptation.

A. Markings on a pansy [physical]

B. The praying Mantis [behavioral]

C. Insects look like leaves [physical]

D. The male frigate puffs his chest [behavioral]

Section 2.4

1- Define the process of natural selection.

The process by which organisms that are best adapted to their

environments survive and reproduce. The organisms that are less

adapted to their environment do not survive and reproduce.

2- What did Darwin study to propose the theory of natural selection?

A. Beaks of finches of the Galapagos islands.

B. horses.

C. Dinosaurs.

D. Rabbit legs.

3- Explain the relationship between natural selection and Evolution.

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As species become better adapted to their environment, their

physical appearance and behavior often change. So natural selection

will occur which is the process by which organisms that are best

adapted to their environments survive and reproduce. Over long

periods of time, organisms can become very different from one

another. Evolution is the gradual change in species over time.

4- What is extinction?

The complete disappearance of all members of a species.

5- Which of the following is an environmental change that could

cause extinction?

A. Asteroids hitting earth.

B. Weather changes such as ice ages.

C. Change in food source.

D. All of the above.

6- A fossil is the remains/traces of an organism that lived long ago.

Fossils help us learns about the history of life on earth.

7- The geologic time scale shows when major groups of organisms

lived on earth and when they died out.

8- Evolution

A. Does not happen nowadays.

B. Is happening all the time.

C. Will happen only in the future.

D. Never happens.

9- Information about human evolution was collected from fossils.

THE END

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GOOD LUCK