ASVAB General Science Practice Test 374962 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.58
Score	0%	72%

Review

Within DNA, a variety of a particular gene is called a(n):

55% Answer Correctly

	homozygous
	heterozygous
	allele
	chromosome

Solution

The gene is the base unit of inheritance and is contained within DNA. A gene may come in several varieties (alleles) and there are a pair of alleles for every gene. If the alleles are alike, a person is homozygous for that gene. If the alleles are different, heterozygous.

The biosphere consists of which of the following?

87% Answer Correctly

	all of these
	atmosphere
	hydrosphere
	lithosphere

Solution

The biosphere is the global ecological system integrating all living beings and their relationships. This includes their interactions with the lithosphere (the rigid outer part of the earth, consisting of the crust and upper mantle), hydrosphere (all surface water), and atmosphere (the envelope of gases surrounding the planet).

Velocity is the rate at which an object changes position. What is the formula for velocity?

68% Answer Correctly

	none of these
	\(\vec{v} = { \vec{d} \over t } \)
	\(\vec{v} = \vec{d}t \)
	\(\vec{v} = { t \over \vec{d} } \)

Solution

Velocity is the rate at which an object changes position. Rate is measured in time and position is measured in displacement so the formula for velocity becomes \(\vec{v} = { \vec{d} \over t } \)

The envelope of gases surrounding the planet is called the:

72% Answer Correctly

	lithosphere
	atmosphere
	hydrosphere
	geosphere

Solution

All surface water is part of the:

76% Answer Correctly

	hydrosphere
	atmosphere
	lithosphere
	geosphere