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Life Science Review
Test Description: Review for Life Science
Instructions: Answer all questions to get your test result.
1) What is the smallest unit that can carry on all functions of life?
A
element
B
atoms
C
cells
D
molecule
2) If you compare a city to a cell, what building would represent the mitochondria and why?
A
city hall: control center
B
power plant: provides energy
C
factory: manufactoring
D
highways and streets: transporation
3) What cell structure is the gatekeeper, controlling what goes in and out of the cell?
A
cell wall
B
nucleus
C
cell membrane
D
vacuole
4) Plants can both physically and chemically ______________ rocks.
A
eroding
B
depositing
C
weathering
D
building
5) Why do you use a microscope to view cells?
A
Cells are too large to see.
B
Cells are everywhere.
C
Cells are too small to see.
D
Cells are very colorful.
6) Which animal group lays eggs in the water, has thin skin, and metamorphosis occurs?
A
Reptiles
B
Amphibians
C
Mammals
D
Birds
7) All are examples of seed producing plants except....
A
grass
B
apple tree
C
moss
D
rose
8) What is one way that microorganisms can be harmful to humans?
A
Microorganisms decompose waste.
B
Microorganisms cause disease.
C
Microorganisms in our stomachs breakdown food.
D
Microorganisms are used in producing food.
9) Traits are determined by our genes and these traits are inherited. Where do our genes come from?
A
Your parents
B
No one
C
Your sisters and brothers
D
Your friends
10) How are humans classified?
A
Vertebrates and vascular
B
Vertebrates and mammals
C
Vascular and humans
D
Vascular and mammals
*select an answer for all questions
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