ASVAB General Science Practice Test 289213 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.07
Score	0%	61%

Review

Which of these layers is found directly below the Earth's crust?

71% Answer Correctly

	continents
	mantle
	inner core
	outer core

Solution

The crust is the Earth's outermost layer and is divided into oceanic and continental types. Oceanic crust is 3 miles (5 km) to 6 miles (10 km) thick and is composed primarily of denser rock. Continental crust is 20 to 30 miles (30 to 50 km) thick and composed primarily of less dense rock. The crust makes up approximately one percent of the Earth's total volume.

Gametes have how many pairs of chromosomes?

76% Answer Correctly

	4
	2
	46
	23

Solution

Reproductive (haploid) cells known as gametes have half as many (23) pairs of chromosomes as normal (diploid) cells. When the male gamete (sperm) combines with the female gamete (ovum) through meiosis to form a zygote, each gamete supplies half the chromosomes needed to form the normal diploid cells.

Which of the following temperatures is least like the others?

43% Answer Correctly

	0K
	-273°C
	absolute zero
	32°F

Solution

Absolute zero is the coldest possible temperature in the universe. In the Kelvin scale, absolute zero is 0K and in the Celsius scale it is -273°C.

What part of the brain is responsible for for balance, movement, and muscle coordination?

70% Answer Correctly

	brainstem
	medulla
	cerebellum
	cerebrum

Solution

The cerebellum is a large cluster of nerves at the base of the brain that's responsible for balance, movement, and muscle coordination.

In the food chain, omnivores may be which of the following?

45% Answer Correctly

	primary or secondary consumers
	secondary consumers or scavengers
	secondary or tertiary consumers
	primary or tertiary consumers

Solution

Secondary or tertiary consumers may be omnivores.