ASVAB General Science Practice Test 833800 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.09
Score	0%	62%

Review

Which of the following is true about species groups?

47% Answer Correctly

	a population is made up of a group of communities
	a biome is a made up of a group of biospheres
	an ecosystem is a biological population
	a community is made up of a group of populations

Solution

A population is a group of organisms of the same species who live in the same area at the same time. A community is a group of populations living and interacting with each other in an area.

What part of the nervous system is responsible for controlling involuntary actions like breathing, swallowing, and heartbeat?

63% Answer Correctly

	cerebrum
	medulla
	spinal cord
	cerebellum

Solution

Part of the brainstem, the medulla is the connection between the brain and the spinal cord. It controls involuntary actions like breathing, swallowing, and heartbeat.

Convert -20C° to F°.

54% Answer Correctly

	-4
	78
	36
	-36

Solution

To convert from C° to F° use:

\(F° = {9 \over 5}C° + 32\)

\(F° = {9 \over 5}(-20) + 32\)

\(F° = {-180 \over 5} + 32\)

\(F° = -36 + 32 = -4\)

The gravitational interaction of Earth and the Moon is responsible for which of these?

77% Answer Correctly

	day and night cycle
	tides
	the northern lights
	seasons

Solution

Tides are caused by the gravitational interaction of Earth and the Moon.

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

67% Answer Correctly

	fewer
	double the number of
	more
	equal numbers of

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.