WorksheetsScience Study Guide Body Systems 7th grade
Total questions: 7
Worksheet time: 7mins
Name
Class
Date
1.
Define Homeostasis
a)
the maintenance of a stable internal environment
b)
the maintenance of a bad environment
c)
the maintenance of a happy environment
d)
the maintenance of a good environment
2.
What is the function/purpose of the alveoli in the respiratory system?
a)
big sacs without our lungs
b)
tiny sacs without our lungs that allow for calm gas exchange
c)
tiny sacs within our lungs that allow for rapid gas exchange
3.
What does physical change do?
a)
when chemicals acids in the stomach break down food
b)
breaks down food without chemicals (teeth chewing food)
4.
What is a chemical change?
a)
when chemicals acids in the stomach break down food
b)
breaks down food without chemicals (teeth chewing food)
5.
when you inhale, air passes through the respiratory system in which order
a)
alveoli--nasal cavity--trachea--bronchi--bronchiole--pharynx--larnyx
b)
nasal cavity--pharynx--larnyx--trachea--bronchi--bronchiole--alveoli
6.
Why do the 3 types pf muscle cells look different?
a)
because they all perform different function in the body
b)
because they don't perform one function int he body
7.
hfdoubfudhbf
a)
jhgafuewhjf
b)
hjbsfduhbfuehbf
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