« previous next »

Author Question: ________ The immune system is a protective mechanism designed to defend the body against substances ... (Read 24 times)

sdfghj

  • Hero Member
  • *****
  • Posts: 552
on: Jun 25, 2018
________ 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
Reply #1 on: Jun 25, 2018
Answer to Question 1

True

Answer to Question 2

d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Mechanism that specify cell fate Mechanism that specify cell fate
The mask covers both the mouth and nose to prevent exposure to body fluids and airborne droplets. The mask covers both the mouth and nose to prevent exposure to body fluids and airborne droplets.
The major divisions of the nervous system. The major divisions of the nervous system.
Energy radiated by substances occurs over a wide range of wavelengths. Energy radiated by substances occurs over a wide range of wavelengths.
Good body mechanics for lifting heavy objects. Good body mechanics for lifting heavy objects.
Action of the DNA uracil repair system Action of the DNA uracil repair system
Video: Alternative Energy Sources

For a complete list of videos, visit our video library