ASVAB General Science Practice Test 473765

Questions 5
Topics Breathing, DNA, Molecule, Moon, Proton

Study Guide

Breathing

The diaphragm is a system of muscles that allows breathing. During inhalation, the diaphragm expands and air rushes in to fill the space created. Then, during exhalation, the diaphragm contracts and forces the air back out.

DNA

Deoxyribonucleic acid (DNA) is the molecule that contains genetic information. DNA is encoded through a combination of nucleotides that bind together in a specific double helix pattern.

Molecule

A molecule is the smallest multi-atom particle of an element or compound that can exist and still retain the characteristics of the element or compound. The molecules of elements consist of two or more similar atoms, the molecules of compounds consist of two or more different atoms.

Moon

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

Proton

A proton is a subatomic particle found in the nucleus of an atom. It carries a positive electric charge.