ASVAB General Science Practice Test 226312 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.25
Score	0%	65%

Review

Which of the following indicates the correct reproductive sequence?

64% Answer Correctly

	none of these are correct
	zygote → ovum → fetus
	ovum → fetus → zygote
	ovum → zygote → fetus

Solution

During intercourse, the penis ejaculates sperm, produced in the testes, into the vagina. Some of the sperm makes their way to the uterus where, if they encounter an egg to fertilize, unite with the ovum to form a fertilized egg or zygote. The zygote then may implant in the uterus and eventually develop into a fetus.

The brain and spinal cord make up the __________ nervous system.

81% Answer Correctly

	autonomic
	peripheral
	somatic
	central

Solution

The nervous system consists of the brain and spinal cord (central nervous system) and the peripheral nervous system which is the network of nerve cells (neurons) that collect and distribute signals from the central nervous system throughout the body.

A human heart consists of how many chambers?

84% Answer Correctly

	4
	8
	2
	1

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.

In the food chain, omnivores may be which of the following?

45% Answer Correctly

	secondary consumers or scavengers
	secondary or tertiary consumers
	primary or tertiary consumers
	primary or secondary consumers

Solution

Secondary or tertiary consumers may be omnivores.

The __________ nervous system controls voluntary actions.

52% Answer Correctly

	autonomic
	somatic
	peripheral
	central

Solution

Part of the peripheral nervous system, the somatic nervous system is made up of nerve fibers that send sensory information to the central nervous system and control voluntary actions.