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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
male organisms
B
each type of organism
C
extinct 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
protection and sensory awareness
B
waste removal and sensory awareness
C
waste removal and transportation of nutrients
D
movement and protection
3) This organ system carries nutrients throughout the body so that specialized cells can perform specialized functions. This body system is the
A
respiratory system
B
integumentary system
C
digestive system
D
circulatory 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 rid of wastes
C
exchange gases
D
get nutrients to the cells
5) The skeletal system and muscular system work together to do which job
A
protect vital organs
B
enable you to move
C
maintain temperature
D
maintain posture
6) Which is the main job of the endocrine system?
A
send messages to your body through hormones
B
keep your blood healthy
C
help you grow
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
her blood would stop circulating and her cells would not get needed oxygen
B
her blood would circulate but only through pulmonary circulation
C
her blood would circulate but only through the systemic circulation
D
There would be no affect at all because the heartbeat affects only the blood, not the body's cells
8) Identify the statement that accurately describes the job of the immune system.
A
the immune system allows for the forming of blood cells when you get cut
B
the immune system attacks bacteria and viruses to maintain homeostasis
C
the immune system attacks red and white blood cells
D
the immune systems permits viruses to enter the body
9) Which job of the skeletal system is most important to maintaining homeostasis?
A
movement
B
shape
C
posture
D
protecting vital organs
10) Your muscular system helps you maintain homeostasis by making you shiver. When you do this, it is your body's way of
A
doing an involuntary movement
B
shivering has nothing to do with the muscular system
C
getting you to have better posture
D
maintaining temperature
*select an answer for all questions
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