1. Human Body Systems Review

2. Which is an example of a single-celled organism?
amoeba
insect
fish
worm

3. Which is an example of a single-celled organism?
amoeba

4. Paul observed an organism under a microscope
Paul observed an organism under a microscope. Which feature will help him ensure that the organism is unicellular?
It contains fewer organelles.
It has a single large cell.
It has a thick outer cell wall.
It can move in liquid.

5. B. It has a single large cell.

6. Shivering is the body’s natural way to keep warm in cold weather
Shivering is the body’s natural way to keep warm in cold weather. What causes shivering?
heavy breathing
contraction of bones
narrowing of blood vessels
rhythmic movement of muscles

7. D. rhythmic movement of muscles

8. Why do multicellular organisms need transport systems. A
Why do multicellular organisms need transport systems? A. Most have cells that are not able to exchange gases with the outside environment. B. Most have cells that are unable to grow and survive in their environment. C. Most have cells that need food from sources outside their environment. D. Most have cells that require more energy to survive than single-celled organisms.

9. Why do multicellular organisms need transport systems. A
Why do multicellular organisms need transport systems? A. Most have cells that are not able to exchange gases with the outside environment.

10. Nancy’s pet dog can catch a ball and bring a newspaper to her
Nancy’s pet dog can catch a ball and bring a newspaper to her. She expected the dog’s puppies to be able to do the same things. However, the puppies could not do any of these activities.
What best explains why the puppies were unable to perform the same activities?
The puppies are too small to perform such activities.
The puppies were fed a different type of dog food.
The activities are not inherited but are learned.
The other parent dog was not trained to do such activities.

11. C. The activities are not inherited but are learned.

12. The diagram shows the digestive system.B C D
Which labeled organ represents the stomach?
organ A C. organ C
organ B D. organ D

13. The diagram shows the digestive system.B C D
Which labeled organ represents the stomach?
B. organ B

14. Which is a function of the cardiovascular system. A
Which is a function of the cardiovascular system? A. to move water throughout the body B. to provide structural support for the body C. to eliminate waste from the body D. to transport gases throughout the body

15. Which is a function of the cardiovascular system?
D. to transport gases throughout the body

16. Which body system sends electrical signals to all other body systems? A. circulatory system B. digestive system C. muscular system D. nervous system

17. Which body system sends electrical signals to all other body systems?
D. nervous system

18. Matt is a tall, eleven-year-old boy. He has a scar on his right cheek
Matt is a tall, eleven-year-old boy. He has a scar on his right cheek. He is intelligent and an excellent drummer. Which of his traits did he most likely inherit? A. his height B. his scar on his right cheek C. his intelligence D. his ability to play the drums

19. Matt is a tall, eleven-year-old boy. He has a scar on his right cheek
Matt is a tall, eleven-year-old boy. He has a scar on his right cheek. He is intelligent and an excellent drummer. Which of his traits did he most likely inherit? A. his height

20. Which characteristic would a child not inherit from one or both of its parents? A. freckles B. hair style C. eye color D. dimples

21. Which characteristic would a child not inherit from one or both of its parents? B. hair style

22. Which statement best describes a bacterial cell. A
Which statement best describes a bacterial cell? A. It contains more than one cell. B. It is a complete organism. C. It is part of a larger organism. D. It contains different kinds of cells.

23. Which statement best describes a bacterial cell. B
Which statement best describes a bacterial cell? B. It is a complete organism.

24. The air that humans breathe contains oxygen that is transported from the lungs to other parts of the body by blood. Which body systems help in this process? A. skeletal system and muscular system B. digestive system and circulatory system C. digestive system, muscular system, and respiratory system D. circulatory system, muscular system, and respiratory system

25. The air that humans breathe contains oxygen that is transported from the lungs to other parts of the body by blood. Which body systems help in this process? D. circulatory system, muscular system, and respiratory system

26. Which characteristic do single-celled organisms and multicellular organisms have in common? A. Both have cells with specialized functions for each life process. B. Both perform all life processes within one cell. C. Both have a way to get rid of waste materials. D. Both are able to make food from sunlight.

27. Which characteristic do single-celled organisms and multicellular organisms have in common?
C. Both have a way to get rid of waste materials.

28. Which system of the human body provides protection to most of the major organs? A. skeletal system B. circulatory system C. respiratory system D. muscular system

29. Which system of the human body provides protection to most of the major organs? A. skeletal system

30. Which example represents a trait that is inherited. A
Which example represents a trait that is inherited? A. A girl has freckles on her nose. B. A man speaks Spanish. C. A woman is a ballerina. D. A boy has braces on his teeth.

31. Which example represents a trait that is inherited. A
Which example represents a trait that is inherited? A. A girl has freckles on her nose.

32. Which example best shows structures that make up the digestive system in the human body? A. heart, blood, vessels B. nose, trachea, lungs C. brain, spinal cord, nerves D. esophagus, stomach, intestines

33. Which example best shows structures that make up the digestive system in the human body?
D. esophagus, stomach, intestines

34. A litter of kittens have traits that are similar to both the mother cat and the father cat. Which best explains this situation? A. The kittens are provided the same kind of milk from their mother as they grow. B. The kittens inherit some of their traits from their mother and some from their father. C. The kittens are kept at the same temperatures by their mother when they are first born. D. The kittens are taught by their parents to have similar traits.

35. A litter of kittens have traits that are similar to both the mother cat and the father cat. Which best explains this situation?
B. The kittens inherit some of their traits from their mother and some from their father.

36. Which are examples of inherited traits. A. specific beliefs B
Which are examples of inherited traits? A. specific beliefs B. fingerprints C. memories D. nose shape

37. Which are examples of inherited traits? D. nose shape

38. The table lists some characteristics of a raccoon.
It has a black patch around its eyes.
It eats fruits and vegetables.
It can open a garbage can.
It has a striped, bushy tail.
Which characteristics of this raccoon could its offspring inherit?
1 and 4
2 and 3
2, 3, and 4
4, 3, and 1

39. The table lists some characteristics of a raccoon.
It has a black patch around its eyes.
It eats fruits and vegetables.
It can open a garbage can.
It has a striped, bushy tail.
Which characteristics of this raccoon could its offspring inherit?
1 and 4

40. What is the purpose of differentiated cells in multicellular organisms
What is the purpose of differentiated cells in multicellular organisms? A. They allow the cell to utilize energy properly. B. They help the organism to divide and multiply rapidly. C. They allow different cells to perform different functions. D. They help the organism survive even if some cells are lost.

41. What is the purpose of differentiated cells in multicellular organisms
What is the purpose of differentiated cells in multicellular organisms? C. They allow different cells to perform different functions.

42. A scientist is trying to decide whether an organism is unicellular or multicellular. Which information would help the scientist most to make her decision? A. size of the cells of the organism B. what the organism eats C. how many types of cells are in the organism D. how fast the organism grows

43. A scientist is trying to decide whether an organism is unicellular or multicellular. Which information would help the scientist most to make her decision? C. how many types of cells are in the organism

44. In humans, the presence or absence of a widow’s peak is a trait that is passed from parents to their children A. No. Shaving the widow’s peak does not change the trait, so it can still be passed on to their children. B. No. Their children will have a widow’s peak because children show all the same traits as their parents. C. Yes. There is no chance the children will be born with a widow’s peak because they destroyed the trait. D. Yes. Children born with a widow’s peak will have a smaller peak because the trait was damaged.
widow’s peak
Many people do not like the widow’s peak, so they shave it off. Will this prevent their children from inheriting the trait?
straight hairline

45. In humans, the presence or absence of a widow’s peak is a trait that is passed from parents to their children A. No. Shaving the widow’s peak does not change the trait, so it can still be passed on to their children.
widow’s peak
Many people do not like the widow’s peak, so they shave it off. Will this prevent their children from inheriting the trait?
straight hairline

46. Which example best describes a learned behavior?
Babies cry when they are hungry.
Birds build specific kinds of nests.
A child discovers that a hot object causes pain.
A fiddler crab waves its claw to attract a mate.

47. Which example best describes a learned behavior?
C. A child discovers that a hot object causes pain.

48. Walter fell off of his bicycle and got hurt
Walter fell off of his bicycle and got hurt. His arm was swollen, and he experienced severe pain. Which body system allowed Walter to feel the pain?
circulatory system
muscular system
nervous system
skeletal system

49. Walter fell off of his bicycle and got hurt
Walter fell off of his bicycle and got hurt. His arm was swollen, and he experienced severe pain. Which body system allowed Walter to feel the pain?
C. nervous system

50. Neal’s pet mouse can find its way through a maze he has at home
Neal’s pet mouse can find its way through a maze he has at home. However, when a new mouse was placed in the maze, it had difficulty finding its way. Which statement best explains why the new mouse has difficulty?
The new mouse has not learned the pathway.
The new mouse is younger than the original mouse.
The new mouse is not as smart as the original mouse.
The new mouse did not inherit the trait from its parents.

51. Neal’s pet mouse can find its way through a maze he has at home
Neal’s pet mouse can find its way through a maze he has at home. However, when a new mouse was placed in the maze, it had difficulty finding its way. Which statement best explains why the new mouse has difficulty?
The new mouse has not learned the pathway.

52. The spring peeper is a small chorus frog found in the eastern United States.
Which characteristic will most likely be passed to spring peeper offspring?
hiding under logs
high-pitched breeding call
eating ants and flies
prefers to hunt at night

53. The spring peeper is a small chorus frog found in the eastern United States.
Which characteristic will most likely be passed to spring peeper offspring?
B. high-pitched breeding call

54. Most spring peepers have a distinctive marking on their backs that resembles an X, as seen in the image. However, some spring peepers do not have the marking. What could be a reason for this?
Spring peepers without the markings only have parents without the marking.
Spring peepers with the marking live in different ecosystems.
Spring peepers without the marking did not inherit the trait.
Spring peepers with the marking do not eat the same food as those without.

55. Most spring peepers have a distinctive marking on their backs that resembles an X, as seen in the image. However, some spring peepers do not have the marking. What could be a reason for this?
C. Spring peepers without the marking did not inherit the trait.

56. Which structures are correctly paired with their body system?
Arteries and veins are part of the skeletal system.
Biceps and triceps are part of the muscular system.
Small intestines and esophagus are part of the nervous system.
Trachea and lungs are part of the digestive system.

57. Which structures are correctly paired with their body system?
B. Biceps and triceps are part of the muscular system.

58. This diagram shows a possible movement in the human body.
Which body systems would best coordinate this movement?
circulatory and respiratory
nervous and respiratory
nervous, muscular, and skeletal
excretory, circulatory, and respiratory

59. This diagram shows a possible movement in the human body.
Which body systems would best coordinate this movement?
C. nervous, muscular, and skeletal

60. Without this body system food will not move through the digestive tract. Which body system is described? A. circulatory system B. muscular system C. respiratory system D. skeletal system

61. Without this body system food will not move through the digestive tract. Which body system is described? B. muscular system

62. A student noted some of the characteristics of a squirrel he observed in his garden. Which characteristic of this squirrel might be different from its parents?
the ability to make a nest
the ability to climb on poles
the ability to crack open nut shells
the ability to remove a bird feeder’s lid

63. A student noted some of the characteristics of a squirrel he observed in his garden. Which characteristic of this squirrel might be different from its parents?
D. the ability to remove a bird feeder’s lid

64. Examine the table listing several physical characteristics.W
a tiger’s stripes X
eye color Y
finger calluses Z
skin tattoos
Which characteristics are considered inherited characteristics?
W and X
X and Y
W and Z
Y and Z

65. Examine the table listing several physical characteristics.W
a tiger’s stripes X
eye color Y
finger calluses Z
skin tattoos
Which characteristics are considered inherited characteristics?
W and X

66. Brenda made a list of functions performed by the skeletal system
Brenda made a list of functions performed by the skeletal system. Which function does Brenda incorrectly include in the list?
allows the body to move
gives shape to the body
makes energy for the body
supports and protects the body

67. Brenda made a list of functions performed by the skeletal system
Brenda made a list of functions performed by the skeletal system. Which function does Brenda incorrectly include in the list?
C. makes energy for the body

68. Which body system processes foods into a useable source of energy. A
Which body system processes foods into a useable source of energy? A. circulatory B. digestive C. nervous D. skeletal

69. Which body system processes foods into a useable source of energy. B
Which body system processes foods into a useable source of energy? B. digestive

70. Which best explains why children resemble their parents. A
Which best explains why children resemble their parents? A. They eat the same foods. B. They have similar DNA. C. They speak the same language. D. They have the same interests.

71. Which best explains why children resemble their parents. B
Which best explains why children resemble their parents? B. They have similar DNA.

72. The table lists some traits of Peter’s parents.
Nose Type
Dimples
Hair Type
Father
Pointed
Present
Curly Hair
Mother
Which set of traits will Peter most likely have?
broad nose, no dimples, curly hair
broad nose, dimples, straight hair
pointed nose, no dimples, straight hair
pointed nose, dimples, curly hair

73. The table lists some traits of Peter’s parents.
Nose Type
Dimples
Hair Type
Father
Pointed
Present
Curly Hair
Mother
Which set of traits will Peter most likely have?
D. pointed nose, dimples, curly hair

74. Ana observed that she had blue eyes like her mother and dimples like her father. Ana’s brother had brown eyes and curly hair like her father.
What can be concluded from Ana’s observation?
All parents and their children have the same features.
Children inherit different characteristics from their parents.
Children develop some characteristics from their surroundings.
Eye color and hair type are influenced by the food we eat.

75. Ana observed that she had blue eyes like her mother and dimples like her father. Ana’s brother had brown eyes and curly hair like her father.
What can be concluded from Ana’s observation?
B. Children inherit different characteristics from their parents.

76. The table lists the features of four organisms.1
All life functions are performed by a single cell. 2
Energy produced in one cell is transported to another cell. 3
The surface cells are in contact with the external environment. 4
It is made up of a cell that links with other similar cells to form a colony.
Which organisms are most likely multicellular?
organisms 1 and 2 C. organisms 1 and 4
organisms 2 and 3 D. organisms 3 and 4

77. The table lists the features of four organisms.1
All life functions are performed by a single cell. 2
Energy produced in one cell is transported to another cell. 3
The surface cells are in contact with the external environment. 4
It is made up of a cell that links with other similar cells to form a colony.
Which organisms are most likely multicellular?
B. organisms 2 and 3

78. Which is a characteristic of a dog that is most likely a result of its environment? A. its color B. its length of ears C. its food preference D. its ability to see in the dark

79. Which is a characteristic of a dog that is most likely a result of its environment? C. its food preference

80. What is the principle role of the structure indicated by the arrow?
to carry oxygen to all parts of the body
to exchange gases between the air and blood
to moisten and heat air before it enters the lungs
to move air from the mouth and nose to the lungs

81. What is the principle role of the structure indicated by the arrow?
D. to move air from the mouth and nose to the lungs

82. A student listed the activities of certain animals. 1
arctic tern flying south in winter 2
chimpanzee using stick to find food 3
vulture throwing small stones to break ostrich’s egg 4
bear hibernating in winter
Which activities are most likely learned from parents?
1 and 2
2 and 3
3 and 4
4 and 1

83. A student listed the activities of certain animals. 1
arctic tern flying south in winter 2
chimpanzee using stick to find food 3
vulture throwing small stones to break ostrich’s egg 4
bear hibernating in winter
Which activities are most likely learned from parents?
B. 2 and 3

84. A bear cub has the same coat color and tail as its parents
A bear cub has the same coat color and tail as its parents. What can be a reason for this similarity?
It has similar DNA.
It eats the same food.
It lives in the same region.
It observes its parents.

85. A bear cub has the same coat color and tail as its parents
A bear cub has the same coat color and tail as its parents. What can be a reason for this similarity?
It has similar DNA.

86. Identify this body system.

87. Identify this body system.
muscular system

88. Identify this body system.

89. Identify this body system.
nervous system

90. Identify this body system.

91. Identify this body system.
respiratory system

92. Identify this body system.

93. Identify this body system.
skeletal system

94. Identify this body system.

95. Identify this body system.
digestive system

96. Identify this body system.

97. Identify this body system.
circulatory system