The Nervous System Answers

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1
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Which best explains how the body maintains homeostasis?

A
All systems work together to stabilize the body.
B
Each system works independently to stabilize the body.
C
All systems work together to match the external environment.
D
Each system works independently to match the external environment.
2
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Which lists three living units of the human body in order from the simplest to the most complex level of organization?

A
red blood cell → circulatory system → blood
B
nervous system → nerves → brain
C
red blood cell → heart tissue → circulatory system
D
bone tissue → skeletal system → bone
4

Which lists three units of an organ system in order from the simplest to the most complex?

A
red blood cell → heart → tissue
B
skeleton → bone → bone cell
C
muscle cell → muscle tissue → stomach
D
lung tissue → lung → circulatory system
10

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11

When the body is cold, an interaction of systems allows the body to warm itself. Which of these help the body warm itself when it is cold? Check all that apply.shiveringsweatinghair on body lying flatgoosebumps forminghair on body standing up

A
shivering
B
sweating
C
hair on body lying flat
D
goosebumps forming
E
hair on body standing up
12

Which describes organs in the human body?

A
the largest living unit
B
a group of cells that work together to perform a common function
C
a group of tissues that work together to perform a common function
D
the smallest living unit
13

Which lists three living units of the human body in order from the simplest to the most complex level of organization?

A
red blood cell → circulatory system → blood
B
nervous system → nerves → brain
C
red blood cell → heart tissue → circulatory system
D
bone tissue → skeletal system → bone
14

Which group contains only organs in a human body?

A
heart, brain, skin
B
skin, blood, neuron
C
neuron, heart, stomach
D
stomach, blood, brain
15

Which group contains only organs in a human body?

A
heart, brain, skin
B
skin, blood, neuron
C
neuron, heart, stomach
D
stomach, blood, brain
16

Which lists three units of an organ system in order from the simplest to the most complex?

A
red blood cell → heart → tissue
B
skeleton → bone → bone cell
C
muscle cell → muscle tissue → stomach
D
lung tissue → lung → circulatory system
17

A group of cells that have the same function is called a(n) _____.

A
tissue
B
organs
C
organism
D
organelles
18

Jasmine is a healthy girl who is playing outside. Her internal body temperature rises to 100.4°F (38°C).How does her body most likely respond to help her return to homeostasis?

A
by shivering
B
by sweating
C
by producing goosebumps
D
by making hair stand up
19

Which is an example of how the body maintains homeostasis?

A
increasing thirst when cells are low on water
B
decreasing thirst when cells are low on water
C
shivering when it is hot
D
sweating when it is cold
20

The esophagus, stomach, and small intestines all function together to digest food and absorb nutrients. Which level of organization is being described?

A
tissue
B
organism
C
organ
D
organ system

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