Author Question: ________ The immune system is a protective mechanism designed to defend the body against substances ... (Read 70 times)

sdfghj

  • Hero Member
  • *****
  • Posts: 552
________ The immune system is a protective mechanism designed to defend the body against substances that might be harmful to it.
 
  Indicate whether the statement is true or false

Question 2

The ________ is one of the most basic units of life, often described as the basic building block of the human body.
 
  a. atom
  b. molecule
  c. organelle
  d. cell



Kedrick2014

  • Sr. Member
  • ****
  • Posts: 359
Answer to Question 1

True

Answer to Question 2

d



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

For a complete list of videos, visit our video library