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2022 Grade 8 Intermediate-Level Science Test Questions 1-10
Test Description: Use your knowledge of Science to answer all questions. Good Luck.
Instructions: Answer all questions to get your test result.
1) All living things are composed of
A
vitamins
B
cells
C
blood
D
organs
2) Which process is carried out by both a plant and an animal?
A
making oxygen
B
eating food
C
growing in size
D
taking in carbon dioxide
Helpful Hint
The chart below shows the classification of Felis catus, the common house cat.
3) Which level of classification contains organisms that are the most closely related?
A
Genus
B
Kingdom
C
Family
D
Species
4) When a person chews food, the teeth grind the food into smaller pieces. This is an example of
A
chemical change
B
cellular respiration
C
mechanical digestion
D
waste removal
Helpful Hint
The diagram below represents a human organ system.
5) What is the function of this system?
A
breakdown of food
B
removal of dissolved wastes
C
production of sex cells
D
coordination of body movement
6) The guinea pigs in a certain population all have black fur. The sudden appearance of a guinea pig with white fur in this population may be the result of
A
gene mutation
B
asexual reproduction
C
ozone depletion
D
habitat destruction
7) As their environment slowly changes, organisms with certain traits are more likely to survive and produce offspring with those same traits. This statement describes
A
natural selection
B
resource conservation
C
genetic engineering
D
cell division
Helpful Hint
The photograph below shows four different dogs. All four dogs belong to the same species.
8) The significant differences between these four dogs were caused by humans. These differences are best explained by the process of
A
regulation
B
biological adaptation
C
metamorphosis
D
selective breeding
Helpful Hint
Three birds are represented in the drawings below.
9) Studying the beak of each of these birds would best help a scientist understand
A
where the birds live
B
what the birds eat
C
how the birds fly
D
if the birds migrate
Helpful Hint
The graph below represents the extinction rate of invertebrates (animals without a backbone) over the last 600 million years.
10) Based on the graph, it might be concluded that
A
the five greatest invertebrate extinction rates occurred every 100 million years
B
there were fewer extinctions 600 million years ago than at present
C
the most recent peak in extinction rate affected the largest number of groups
D
the greatest invertebrate extinction rate occurred about 450 million years ago
*select an answer for all questions
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