ASVAB General Science Practice Test 198156 Results

Your Results Global Average
Questions 5 5
Correct 0 3.47
Score 0% 69%

Review

1

The __________ nervous system regulates involuntary activity in the heart, stomach, and intestines.

59% Answer Correctly

somatic

central

autonomic

peripheral
Solution

Part of the peripheral nervous system, the autonomic nervous system regulates involuntary activity in the heart, stomach, and intestines.

2

A human heart consists of how many chambers?

84% Answer Correctly

4

8

2

1
Solution

The heart is the organ that drives the circulatory system. In humans, it consists of four chambers with two that collect blood called atria and two that pump blood called ventricles. The heart's valves prevent blood pumped out of the ventricles from flowing back into the heart.

3

During digestion, after proteins are broken down where does the undigested food go next?

53% Answer Correctly

stomach

large intestine

small intestine

esophagus
Solution

Food is mixed with gastric acid and pepsin in the stomach to help break down protein.

4

Which of the following describes the Earth's mantle?

81% Answer Correctly

makes up most of Earth's volume

all of these

hot

dense
Solution

Mantle makes up 84% of the Earth's volume and has an average thickness of approximately 1,800 miles (2,900 km). It is dense, hot, and primarily solid although in places it behaves more like a viscous fluid as the plates of the upper mantle and crust gradually "float" along its circumference.

5

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

71% Answer Correctly

continents

mantle

outer core

inner 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.