ASVAB General Science Practice Test 173020 Results

Your Results Global Average
Questions 5 5
Correct 0 2.52
Score 0% 50%

Review

1

Examples of primary consumers include:

54% Answer Correctly

rats

all of these

cows

fish
Solution

Primary consumers (herbivores) subsist on producers like plants and fungus.  Examples are grasshoppers, cows, and plankton.

2

When the clouds become too saturated with water, the water is released as precipitation in the form of:

28% Answer Correctly

snow

rain

snow or ice

ice
Solution

Rising into the atmosphere, the water condenses into clouds. When the clouds become too saturated with water, the water is released as snow or ice precipitation which may warm as it falls to reach Earth as rain.

3

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

67% Answer Correctly

fewer

more

double the number of

equal numbers 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.

4

Regulation of heart rhythm occurs in:

61% Answer Correctly

cerebrum

cerebellum

nerves

medulla
Solution

Part of the brainstem, the medulla is the connection between the brain and the spinal cord. It controls involuntary actions like breathing, swallowing, and heartbeat.

5

Which of the following substances gives up negatively charged hydroxide ions (OH-) when dissolved in water?

42% Answer Correctly

ion

base

hydrogen

acid
Solution

An acid is a substance that gives up positively charged hydrogen ions (H+) when dissolved in water. A base (alkaline) gives up negatively charged hydroxide ions (OH-) when dissolved in water. pH is a scale that measures of how basic or acidic a solution is. Numbered from 0 to 14, solutions with a pH of 7 are neutral, less than 7 are acidic, more than 7 are alkaline.