ASVAB General Science Practice Test 770646 Results

Your Results Global Average
Questions 5 5
Correct 0 3.69
Score 0% 74%

Review

1

The pitch of the siren of an approaching ambulance changes as it approaches you. This is an example of which of the following?

70% Answer Correctly

Doppler effect

reflection

sound radiation

refraction
Solution

The Doppler effect occurs when the source or listener (or both) of sound waves is moving. If they're moving closer together, the listener perceives the sound with a higher pitch and, when they're moving apart, the listener perceives the sound with a lower pitch.

2

Herbivores are __________ that subsist on producers like plants and fungus.

73% Answer Correctly

tertiary consumers

primary consumers

scavengers

secondary consumers
Solution

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

3

Which is the proper order of Earth's atmospheric layers from the surface up to space?

58% Answer Correctly

thermosphere, mesosphere, stratosphere, troposphere

stratosphere, troposphere, mesosphere, thermosphere

mesosphere, thermosphere, stratosphere, troposphere

troposphere, stratosphere, mesosphere, thermosphere
Solution

The troposphere is the closest layer to Earth, followed by the stratosphere, mesosphere, and finally the thermosphere which borders space.

4

A biological community of interacting organisms and their physical environment is known as:

79% Answer Correctly

population

community

biome

ecosystem
Solution

An ecosystem is a biological community of interacting organisms and their physical environment. This includes both the biotic (living) and abiotic (non-living).

5

Which of the following is a decomposer?

90% Answer Correctly

mosquito

pine tree

ferret

fungi
Solution

Decomposers (saprotrophs) are organisms such as bacteria and fungi that break down the organic matter in the dead bodies of plants and animals into simple nutrients.