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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
Store wastes for the cell
B
Maintain homeostasis and control what enters and exits the cell
C
Produce nutrients for the cell
D
Make energy
2) Which of these characteristics might help a plant species survive in an area with limited sunlight?
A
Shallow roots
B
Short stems
C
Broad leaves
D
Bright flowers
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
migrate seasonally
D
conserve water
4) Which group has only abiotic factors?
A
soil, water, light, producers, consumers
B
soil, producers, light, air, rainfall
C
soil, water, light, air, rainfall
D
soil, water, light, consumers, rainfall
5) Which term best characterizes all of the white tailed deer in Shiner?
A
ecosystem
B
individual
C
population
D
community
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
.5 g/mL
B
2 g/mL
C
40 g/mL
D
120 g/mL
7) The Law of Conservation of Mass states that -
A
mass is transformed into different forms
B
matter makes up everything in the universe
C
mass cannot be created or destroyed
D
energy cannot be created or destroyed
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
2 N
C
.25 N
D
4 N
10) What is the force that is required to move a 3 kb book at a rate of 5 m/s2?
A
2 N
B
15 N
C
.6 N
D
1.67 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
Newton's 3rd Law
B
Newton's 2nd Law
C
Newton's 1st Law
D
It doesn't follow one of Newton's laws
12) Which of the following statements best summarizes the law of conservation of energy?
A
Energy cannot be created or destroyed.
B
Energy can disappear, but it must always return.
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
mechanical to nuclear
B
electrical to thermal
C
chemical to electrical
D
light to chemical
15) How many days are in one lunar cycle?
A
24
B
12
C
28
D
365
16) Elements in the same group have what in common?
A
The same chemical properties
B
The
C
The same number of rings
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
an element
D
a molecule
18) Tearing paper is an example of a -
A
chemical reaction
B
physical change
C
physical reaction
D
chemical change
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
Water quality will reduce
B
Disease will become less common
C
Organism diversity will increase
D
More nutrients will be available
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
a relationship
C
an energy requirement
D
an adaptation
*select an answer for all questions
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