ASVAB General Science Practice Test 364376 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.45
Score	0%	69%

Review

Which of the following states of matter exists at the highest temperature?

68% Answer Correctly

	liquid
	none of these
	gas
	solid

Solution

Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.

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

67% Answer Correctly

	more
	double the number of
	equal numbers of
	fewer

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.

Gametes have how many pairs of chromosomes?

76% Answer Correctly

	46
	2
	4
	23

Solution

Reproductive (haploid) cells known as gametes have half as many (23) pairs of chromosomes as normal (diploid) cells. When the male gamete (sperm) combines with the female gamete (ovum) through meiosis to form a zygote, each gamete supplies half the chromosomes needed to form the normal diploid cells.

A human heart consists of how many chambers?

84% Answer Correctly

	2
	1
	8
	4

Solution

The heart is the organ that drives the circulatory system. In humans, it consists of four chambers with two that collect blood called atria and two that pump blood called ventricles. The heart's valves prevent blood pumped out of the ventricles from flowing back into the heart.

Universal donor blood can be given to a person with any blood type. Which blood type is the universal donor?

51% Answer Correctly

	O-positive
	O
	O-negative
	AB

Solution

Blood transfer is limited by the type and Rh factor of the blood. Someone who has Rh-factor negative blood cannot receive blood with a positive type but a person with Rh-factor positive type blood can receive Rh-negative blood. Type O negative blood is the universal donor because it can be given to a person with any blood type. Type AB positive is the universal recipient meaning someone with this blood type can receive any other type of blood.