ASVAB General Science Practice Test 490972

Questions 5
Topics Domain, Liver, Primary Consumers, Refraction, The Sun

Study Guide


The broadest classification of life splits all organisms into three groups called domains. The three domains of life are bacteria, archaea and eukaryota.


The liver produces bile which emulsifies (separates) fat.

Primary Consumers

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


Because different materials have different refractive indices, light changes speed when passing from one material to another. This causes the light to bend (refraction) at an angle that depends on the change in refractive index between the materials. The greater the difference, the higher the angle of refraction.

The Sun

The Sun is a G-type main-sequence star (G2V) but is informally known as a yellow dwarf star. Composed of 73% hydrogen and 25% helium, the hot plasma that makes up the Sun reaches 9,900°F (5,505°C) at the surface. It formed approximately 4.6 billion years ago and makes up 99.86% of the mass in the solar system.