ASVAB General Science Practice Test 757132 Results

Your Results Global Average
Questions 5 5
Correct 0 3.49
Score 0% 70%

Review

1

Which of the following is the correct order for types of radiation from lowest to highest frequency?

63% Answer Correctly

visible light → ultraviolet light → radio waves

radio waves → visible light → gamma rays

microwaves → radio waves → visible light

infrared waves → microwaves → ultraviolet light
Solution

The electromagnetic spectrum covers all possible wavelengths and frequencies of radiation.  From lowest frequency (longest wavelength) to highest frequency (shortest wavelength) radiation: radio waves → microwaves → infrared waves → visible light → ultraviolet light → X-rays → gamma rays.

2

Which of the following members of the food chain are most alike?

65% Answer Correctly

primary consumers and omnivores

producers and tertiary consumers

herbivores and autotrophs

scavengers and decomposers
Solution

Like decomposers, scavengers also break down the dead bodies of plants and animals into simple nutrients. The difference is that scavengers operate on much larger refuse and dead animals (carrion). Decomposers then consume the much smaller particles left over by the scavengers.

3

The coldest point in the Earth's atmosphere is reached in which atmospheric layer?

52% Answer Correctly

thermosphere

stratosphere

mesosphere

troposphere
Solution

In the mesosphere, temperature again drops as altitude increases until the coldest point in the Earth's atmosphere, the mesopause, is reached where temperatures fall to −225 °F (−143 °C).

4

Which of blood component carries oxygen?

83% Answer Correctly

white blood cells

platelets

plasma

red blood cells
Solution

Blood is created in bone marrow and is made up of cells suspended in liquid plasma. Red blood cells carry oxygen, white blood cells fight infection, and platelets are cell fragments that allow blood to clot.

5

In the food chain, bacteria and fungi convert the organic matter in the dead bodies of plants and animals into simple nutrients. Bacteria and fungi are:

86% Answer Correctly

scavengers

producers

primary consumers

decomposers
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.