How does a pair of skeletal muscles work together?

When one muscle contracts, the other relaxes.

Maria was ill with measles when she was younger. Why will she not get the disease again?

She has built up antibodies to measles.

Which can muscle cells form?

cardiac muscles & skeletal muscles

Which is true on nerve cells, or neurons?

They are in the brain and in the spinal cord.

How are viruses and bacteria different?

Viruses are much smaller than bacteria.

Which describes the path of air through the body after it enters the nose or mouth?

from pharynx, to trachea, to bronchial tubes

Which are jobs of the skeletal system?

helps you move, protects your organs

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Ch. 5: Systems of the Human Body

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Scott Foresman Science Chapter 5 Test

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Questions 19

Answers

1
How does a pair of skeletal muscles work together?
When one muscle is voluntary, the other is involuntary.
Both muscles relax and then work together.
Both muscles contract at the same time.
When one muscle contracts, the other relaxes.
2
Maria was ill with measles when she was younger. Why will she not get the disease again?
She has built up antibodies to measles.
She has bacteria that will keep her from getting sick.
She has developed pathogens that protect her.
She will no longer let measles enter her body.
3
A disease that can pass from one organism to another
vaccine
pathogyns
neuron
infectious disease
4
Which can muscle cells form?
bone tissue & involuntary muscles
cardiac muscles & skeletal muscles
bone cells & cardiac muscles
blood cells & bone cells
5
Which is true on nerve cells, or neurons?
They are in the brain and in the spinal cord.
They are also called connective tissue.
They are involuntary muscle cells.
They are only found in the spinal cord.
6
Muscles that you can choose to control
voluntary muscles
infectious disease
involuntary muscles
neuron
7
Which important discovery did Alexander Fleming make?
the first microorganism
the first pathogen
the first antibiotic
the first vaccine
8
How are viruses and bacteria different?
Viruses are much smaller than bacteria.
Bacteria enter through the nose, and viruses enter the skin
Bacteria is an antibody, and virus is a pathogen.
Viruses cure illness, and bacteria spread illness.
9
Which of these kinds of muscle is voluntary?
digestion
breathing
heart
skeletal
10
Which are organs of the digestive system?
spinal cord, large intestine
esophagus, small intestine
voluntary muscles, stomach
connective tissue, tongue
11
An injection of dead or weakened pathogens that causes you to be immune to a disease
involuntary muscles
immune system
vaccine
pathogyns
12
Basic working unit of the nervous system or the nerve cell
infection
neuron
vaccine
pathogyns
13
Which describes the path of air through the body after it enters the nose or mouth?
from trachea, to bronchial tubes, to pharynx
from windpipe, to bronchial tubes, to trachea
from pharynx, to trachea, to bronchial tubes
from bronchial tubes, to trachea, to lungs
14
Muscles that you cannot choose to control
voluntary muscles
infectious disease
involuntary muscles
neuron
15
Organisms that cause disease are
neuron
pathogens
vaccine
immune system
16
The organs in your body that defend against disease
immune system
vaccine
pathogyns
involuntary muscles
17
Which are jobs of the skeletal system?
helps you breathe, makes your heart beat
helps you move, protects your organs
makes calcium, fights disease
protects you from disease, makes muscle
18
Which tells what the brain does?
helps support the body
brings oxygen to the blood
breaks down nutrients so the cells can use them
sends messages to body systems
19
The process of breaking food into a form cells can use is called
voluntary muscles
intestine
constipation
digestion

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