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8th Grade Science EOG Review Part VI
Test Description: Essential Standards 8th Grade Science EOG Review
Instructions: Answer all questions to get your test result.
1) How do scientists know that some mountains were once at the bottom of an ocean?
A
freshwater rivers flow to the ocean
B
marine fossils have been found on the peaks of some mountains
C
dinosaur bones have been discovered in the mountains
D
saltwater fish are found in some mountain streams
2) What is the cause of malaria?
A
a virus
B
a bacterium
C
a parasite
D
a fungus
3) How can the rate of an infectious disease be drastically reduced?
A
by preventing transmission between people
B
by taking medication daily
C
by performing dental hygiene three times a day
D
by wearing clean clothing daily
4) What is involved in creating genetically modified bacteria?
A
growing them on selected plants
B
allowing them to reproduce freely
C
using biotechnology techniques
D
changing their food source
5) In a food pyramid, which best explains why the number of organisms decreases from one trophic level to the next?
A
consumers at the top-level require more energy than the lower level consumers
B
the consumers are feeding on smaller organisms that have less energy
C
the consumers are feeding on larger organisms that have less energy
D
consumers at the lower level require more energy than the top-level consumers
6) What process is responsible for the extinction of most species of plants and animals that have lived on Earth?
A
gene mutation
B
selective breeding
C
environmental changes
D
decrease in reproduction
7) What would indicate that a series of fossils represent the evolution of the horse?
A
all of the fossils were located in the same place on Earth as horses
B
all of the fossils are completely identical to horse bones
C
all of the fossils show similar structures to that of the modern horse
D
all of the fossils were found in the same layers of rocks as horse fossils
8) Which would enable strawberries to survive a hard freeze?
A
They have larger leaves to protect the fruit than the other strawberries
B
They have different genetic variations that cause them to be more resistant to cold temperatures
C
They are able to reproduce more quickly than other strawberries
D
The color of the strawberries is darker, so they maintain their temperature better
9) Which food provides the most energy for the body in the shortest amount of time?
A
potato
B
milk
C
meat
D
fruit
10) Why is protein an important part of a healthy diet?
A
it is needed to repair tissue
B
it is needed to produce water
C
it is needed to store nutrients
D
it is needed to change glucose to energy
*select an answer for all questions
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