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Final Exam Review - 8th
Test Description: Final Review
Instructions: Answer all questions to get your test result.
1) What is the main function of the cell membrane in all cells?
A
Maintain homeostasis and control what enters and exits the cell
B
Produce nutrients for the cell
C
Make energy
D
Store wastes for the cell
2) Which of these characteristics might help a plant species survive in an area with limited sunlight?
A
Bright flowers
B
Shallow roots
C
Broad leaves
D
Short stems
3) Areas that receive little rainfall and have extreme high and low temperatures will most likely have organisms that –
A
are adapted for aquatic environments
B
are active only during the daytime
C
conserve water
D
migrate seasonally
4) Which group has only abiotic factors?
A
soil, water, light, consumers, rainfall
B
soil, water, light, producers, consumers
C
soil, producers, light, air, rainfall
D
soil, water, light, air, rainfall
5) Which term best characterizes all of the white tailed deer in Shiner?
A
population
B
ecosystem
C
community
D
individual
6) A piece of wood has a volume of 40.0 mL and a mass of 80.0 grams. What is the density of the wood?
A
2 g/mL
B
.5 g/mL
C
40 g/mL
D
120 g/mL
7) The Law of Conservation of Mass states that -
A
matter makes up everything in the universe
B
energy cannot be created or destroyed
C
mass cannot be created or destroyed
D
mass is transformed into different forms
8) How many carbon atoms are in the following formula? 3C6H12O6
A
24
B
18
C
72
D
6
9) How much force is needed to accelerate an 8 kg wheelbarrow at a rate of 2 m/s?
A
10 N
B
4 N
C
.25 N
D
2 N
10) What is the force that is required to move a 3 kb book at a rate of 5 m/s2?
A
15 N
B
1.67 N
C
.6 N
D
2 N
11) Which of Newton's Laws does the following go under: A boat oar pushes backward against the water, and the water pushes forward agains the oar
A
It doesn't follow one of Newton's laws
B
Newton's 1st Law
C
Newton's 3rd Law
D
Newton's 2nd Law
12) Which of the following statements best summarizes the law of conservation of energy?
A
Energy can disappear, but it must always return.
B
Energy cannot be created or destroyed.
C
Energy can be created and conserved for later use.
D
Energy cannot disappear or change forms.
13) The Milky Way is a ___ galaxy.
A
Globular
B
Elliptical
C
Irregular
D
Spiral
14) What kind of energy transformation occurs in a car engine?
A
chemical to electrical
B
electrical to thermal
C
mechanical to nuclear
D
light to chemical
15) How many days are in one lunar cycle?
A
28
B
24
C
365
D
12
16) Elements in the same group have what in common?
A
The same number of rings
B
The same chemical properties
C
The
D
The same number of protons
17) Because zinc can combine with other substances but cannot be changed into a simpler substance by an ordinary chemical process, zinc is classified as -
A
a compound
B
a proton
C
a molecule
D
an element
18) Tearing paper is an example of a -
A
physical reaction
B
physical change
C
chemical change
D
chemical reaction
19) A coal-burning facility is constructed in an area containing several pond ecosystems. How will this human activity most likely affect the pond ecosystems?
A
Disease will become less common
B
More nutrients will be available
C
Water quality will reduce
D
Organism diversity will increase
20) Sea anemones are poisonous. However, the clownfish has developed an outer layer of mucus which provides protection from the stinging cells of the sea anemone. The mucus is best described as -
A
a social hierarchy
B
an adaptation
C
an energy requirement
D
a relationship
*select an answer for all questions
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