ASVAB General Science Practice Test 268670

Questions 5
Topics Blood Cells, Element, Liver, Nucleus, Number System

Study Guide

Blood Cells

Blood is created in bone marrow and is made up of cells suspended in liquid plasma. Red blood cells carry oxygen, white blood cells fight infection, and platelets are cell fragments that allow blood to clot.

Element

An element is matter than cannot be separated into different types of matter by ordinary chemical methods.

Liver

The liver produces bile which emulsifies (separates) fat.

Nucleus

Cells are classified into one of two groups based on whether or not they have a nucleus. Eukaryotic cells have a nucleus, prokaryotic cells do not have a nucleus and therefore have a less complex structure than eukaryotic cells.

Number System

The metric system is a number system that designates one base unit for each type of measurement. For example, the base unit for length is the meter and the base unit for mass is the gram.