ASVAB General Science Practice Test 312004 Results

Your Results Global Average
Questions 5 5
Correct 0 3.21
Score 0% 64%

Review

1

During digestion, the kidneys filter substances from the blood. Which of the following is not filtered by the kidneys?

74% Answer Correctly

water

fats

minerals

salt
Solution

Chemical waste like excess water, minerals, and salt are filtered from the blood by the kidneys and secreted into the urine. Urine is transported from the kidneys to the bladder through ureters.

2

In the metric system, what prefix represents 103?

61% Answer Correctly

milli

kilo

centi

mega
Solution

Kilo is the metric system prefix for 103.

3

Arteries carry __________ blood at __________ pressure.

65% Answer Correctly

oxygenated, low

deoxygenated, high

oxygenated, high

deoxygenated, low
Solution

Veins carry blood back to the heart from the body. While arteries are thick-walled because they carry oxygenated blood at high pressure, veins are comparatively thin-walled as they carry low-pressure deoxygenated blood. Like the heart, veins contain valves to prevent blood backflow.

4

Generally, an atom has __________ negative electrons orbiting the nucleus as it does positive protons inside.

67% Answer Correctly

fewer

equal numbers of

more

double the number of
Solution

An electron is a subatomic particle that orbits the nucleus of an atom. It carries a negative electric charge. Generally, an atom has the same number of negative electrons orbiting the nucleus as it does positive protons inside.

5

In the heart, blood flows from the right __________ to the lungs then back to the heart via the left __________.

55% Answer Correctly

ventricle, ventricle

atrium, atrium

atrium, ventricle

ventricle, atrium
Solution

The two largest veins in the body, the venae cavae, pass blood to the right ventricle which pumps the blood to the lungs through the pulmonary artery. Blood picks up oxygen in the lungs and returns it to the left atrium via the pulmonary vein.