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Human Body Review--7th Grade Life Science
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by Amy Ridilla
| 35 Questions
1
1 pt
Homeostasis is vital to an organism because it allows the organism to _____________.
grow at the fastest rate possible
reproduce even when conditions are unfavorable
camouflage against its background
mantain a stable internal environment
2
1 pt
Which human body system consists of veins, arterities, and the heart?
3
1 pt
Which two systems of a rabbit’s body must be working together for the rabbit to run away from a fox?
digestive and endocrine
muscular and skeletal
excretory and nervous
excretory and respiration
4
1 pt
The kidneys, which remove dissolved wastes from the blood, are organs of the
endocrine system
excretory system
skeletal system
nervous system
5
1 pt
Running is an activity that causes the cells in the muscular system to use oxygen at a faster rate. Which system responds by delivering more oxygen to these cells?
digestive
nervous
cardiovascular
endocrine
6
1 pt
Which human body systems are directly involved in reflex actions, such as knee jerk, blinking, and jumping when startled?
cardiovascular and respiratory
nervous and muscular
digestive and excretory
reproductive and skeletal
7
1 pt
Which body system is responsible for the elimination of liquid and gaseous wastes?
nervous
excretory
skeletal
digestive
8
1 pt
Which three systems of the human body function together to move and control body parts?
nervous, skeletal, and muscular
muscular, endocrine, and excretory
digestive, excretory, and muscular
cardiovascular, endocrine, and bones
9
1 pt
What are two functions performed by the skeletal system?
protects the body
supports the body
produces waste products
excretes waste products
transports oxygen throughout the body
controls and coordinates all body activities
10
1 pt
What is the main function of the cardiovascular system?
secrete enzymes
digest proteins
produce hormones
transport materials
11
1 pt
Which body system typically recognizes, attacks, and destroys foreign cells or substances that may cause diseases?
digestive
immune
excretory
respiratory
12
1 pt
Which of these best completes the statement about the interaction of the respiratory system with the cardiovascular system? The lungs add ________________________.
nutrients in the blood
bile to the blood
oxygen to the blood
carbon dioxide to the blood
13
1 pt
The major organs of the respiratory system are ______________________________.
liver, stomach, and pancreas
muscles, bones, and skull
trachea, lungs, and diaphragm
heart, blood, and vena cava
14
1 pt
Which body system produces hormones that regulate body changes?
15
1 pt
Which component of the blood is responsible for engulfing and digesting bacteria that invade the body?
16
1 pt
What are the main types of muscular tissue?
veins, arteries, and heart
kidneys, bladder, and urethra
skeletal, cardiac, and smooth
lungs and diapraghm
17
1 pt
Randy is sick with the flu, and has swollen glands in his neck. What system is most likely causing the swelling?
18
1 pt
The organ system that uses blood to carry nutrients and oxygen to the cells of the body is the ______________________________.
19
1 pt
As a person exercises, carbon dioxide (CO₂) levels in the blood increase. This causes the nervous system to signal which of these systems to respond?
respiratory and cardiovascular
digestive and immune
immune and respiratory
cardiovascular and endocrine
20
1 pt
How do the lungs function within the excretory system?
the lungs exchange oxygen and carbon monoxide
the lungs absorb carbon dioxide from the air
the lungs help to release carbon dioxide while absorbing nutrients
the lungs exchange oxygen and carbon dioxide and release waste products in cells
21
1 pt
Which of the following systems breaks food into nutrients that can be used by the body?
22
1 pt
Which system functions as a communication system in the human body?
23
1 pt
Which of the following is a direct interaction of the skeletal, muscular, and nervous systems?
feeling tired after eating a meal
movement of a person's arm
healing of a cut on the arm
increased production of hormones
24
1 pt
Which list gives the correct order of food traveling through the digestive system after it is swallowed?
esophagus, stomach, small intestine, and large intestine
esophagus, stomach, large intestine, and small intestine
small intestine, large intestine, esophagus, and stomach
stomach, esophagus, large intestine, and small intestine
25
1 pt
Certain body organs are found in pairs. When one organ does not function properly or is removed, the other organ can carry out the important functions. Which body system contains major organs found in pairs?
26
1 pt
The primary cause of an infectious disease is ___________________________.
lack of vitamins and minerals
damage to a body tissue or organ
other organisms that enter the body
harmful chemicals or radiation
27
1 pt
The body's first line of defense is _________.
28
1 pt
How do white blood cells help the human body most?
by fighting disease
by carrying oxygen through the body
by carrying food through the body
by clotting the blood
29
1 pt
An example of an infectious disease is _______.
influenza
diabetes
cancer
hypertension
30
1 pt
Which organ systems work together to keep carbon dioxide from building up inside?
cardiovascular
respiratory
immune
muscular
skeletal
nervous
31
1 pt
The central nervous system is made up of the brain and the _________.
32
1 pt
The diaphragm is a sheet-like muscle located between the chest and abdomen. How does the diaphragm aid in breathing?
It transfers oxygen to and from blood in the lungs
It has thin surfaces covered with blood vessels that exchange gases within the lungs
It expands the chest cavity, causing the body to inhale.
It provides a path through which air can travel from the throught into the lungs.
33
1 pt
Which of these organ systems is MOST directly involved with supplying energy?
cardiovascular
excretory
nervous
digestive
respiratory
immune
reproductive
34
1 pt
Describe the interactions between the cardiovascular and respiratory system with regard to the exchange in gases.

35
1 pt
How was the circulatory system similar to the highway system? You must list at least 3 similarities.

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