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7th Grade Science Unit Test 4 Review Part II
Test Description: Part II Unit Test 4 Review
Instructions: Answer all questions to get your test result.
1) Reproduction is not necessary for an individual organism to survive but it is necessary for the survival of
A
each type of organism
B
extinct organisms
C
male organisms
D
female organisms
2) The largest organ in the human body is the skin which is also called the integumentary system. it has two functions which are
A
movement and protection
B
protection and sensory awareness
C
waste removal and transportation of nutrients
D
waste removal and sensory awareness
3) This organ system carries nutrients throughout the body so that specialized cells can perform specialized functions. This body system is the
A
circulatory system
B
integumentary system
C
respiratory system
D
digestive system
4) The excretory system is connected to other systems, such as the circulatory system and the digestive system. The excretory system's primary function is to
A
protect the other systems
B
get nutrients to the cells
C
get rid of wastes
D
exchange gases
5) The skeletal system and muscular system work together to do which job
A
enable you to move
B
maintain temperature
C
maintain posture
D
protect vital organs
6) Which is the main job of the endocrine system?
A
keep your blood healthy
B
help you grow
C
send messages to your body through hormones
D
make you mature
7) Jontea has gone into cardiac arrest, meaning that her heart has stopped beating. Which best summarizes the effect this will have on her body's cells?
A
There would be no affect at all because the heartbeat affects only the blood, not the body's cells
B
her blood would stop circulating and her cells would not get needed oxygen
C
her blood would circulate but only through pulmonary circulation
D
her blood would circulate but only through the systemic circulation
8) Identify the statement that accurately describes the job of the immune system.
A
the immune systems permits viruses to enter the body
B
the immune system attacks red and white blood cells
C
the immune system attacks bacteria and viruses to maintain homeostasis
D
the immune system allows for the forming of blood cells when you get cut
9) Which job of the skeletal system is most important to maintaining homeostasis?
A
posture
B
movement
C
protecting vital organs
D
shape
10) Your muscular system helps you maintain homeostasis by making you shiver. When you do this, it is your body's way of
A
getting you to have better posture
B
maintaining temperature
C
doing an involuntary movement
D
shivering has nothing to do with the muscular system
*select an answer for all questions
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